All Results|Race Analytics|Course|Contact
BOSTON MARATHON 2026

Marilyn Tarkalson

Bib: 8611•F

ID

Boston Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 46%
Masters (Masters Women)
#0 / 6862
Top 33%
Age Group (F45-49)
#0 / 1786
Top 41%
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
25:04
3.11 mi
Rank: #17412
Start → 5K
25:04 | 8:05/mi
10K
49:16
6.21 mi
Rank: #16557 (+855)
5K → 10K
24:12 | 7:48/mi
15K
1:12:55
9.32 mi
Rank: #15617 (+940)
10K → 15K
23:39 | 7:37/mi
20K
1:35:53
12.43 mi
Rank: #14443 (+1174)
15K → 20K
22:58 | 7:24/mi
HALF
1:40:54
13.11 mi
Rank: #14293 (+150)
20K → HALF
5:01 | 7:22/mi
25K
2:00:11
15.53 mi
Rank: #14406 (-113)
HALF → 25K
19:17 | 7:58/mi
30K
2:28:55
18.64 mi
Rank: #15898 (-1492)
25K → 30K
28:44 | 9:15/mi
20M
2:41:04
20.00 mi
Rank: #16144 (-246)
30K → 20M
12:09 | 8:57/mi
21M
2:50:35
21.00 mi
Rank: #16266 (-122)
20M → 21M
9:31 | 9:31/mi
35K
2:57:14
21.75 mi
Rank: #16396 (-130)
21M → 35K
6:39 | 8:54/mi
23M
3:08:29
23.00 mi
Rank: #16513 (-117)
35K → 23M
11:15 | 9:00/mi
24M
3:16:59
24.00 mi
Rank: #16518 (-5)
23M → 24M
8:30 | 8:30/mi
40K
3:24:19
24.85 mi
Rank: #16470 (+48)
24M → 40K
7:20 | 8:35/mi
25.2M
3:27:31
25.20 mi
Rank: #16460 (+10)
40K → 25.2M
3:12 | 9:17/mi
FINISH
3:35:54
26.22 mi
Rank: #16458 (+2)
25.2M → FINISH
8:23 | 8:14/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:40:54
Pace7:42 /mi
2nd Half
Distance13.11 mi
Time1:55:00
Pace8:47 /mi
📊Positive Split: 14.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:40:2025:048:0525:04
8:05
-
10K
6.21 mi11:04:3249:167:5624:12
7:48
-0:17
15K
9.32 mi11:28:111:12:557:5023:39
7:37
-0:11
20K
12.43 mi11:51:091:35:537:4322:58
7:24
-0:13
HALF
13.11 mi11:56:101:40:547:425:01
7:22
-0:02
25K
15.53 mi12:15:272:00:117:4519:17
7:58
+0:36
30K
18.64 mi12:44:112:28:558:0028:44
9:15
+1:17
20M
20.00 mi12:56:202:41:048:0412:09
8:57
-0:18
21M
21.00 mi13:05:512:50:358:089:31
9:31
+0:34
35K
21.75 mi13:12:302:57:148:096:39
8:54
-0:37
23M
23.00 mi13:23:453:08:298:1211:15
9:00
+0:06
24M
24.00 mi13:32:153:16:598:138:30
8:30
-0:30
40K
24.85 mi13:39:353:24:198:147:20
8:35
+0:05
25.2M
25.20 mi13:42:473:27:318:153:12
9:17
+0:42
FINISH
26.22 mi13:51:103:35:548:158:23
8:14
-1:03

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

7:22 /mi

Average Pace

8:14 /mi

Slowest Pace

9:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:00:11

56% of race

Time at Steady Pace

24:13

11% of race

Time at Slower Pace

1:11:30

33% of race

Average Pace: 8:14 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:40:2025:048:0525:04
8:05
#17412
10K
6.21 mi11:04:3249:167:5624:12
7:48
#16557
15K
9.32 mi11:28:111:12:557:5023:39
7:37
#15617
20K
12.43 mi11:51:091:35:537:4322:58
7:24
#14443
HALF
13.11 mi11:56:101:40:547:425:01
7:22
#14293
25K
15.53 mi12:15:272:00:117:4519:17
7:58
#14406
30K
18.64 mi12:44:112:28:558:0028:44
9:15
#15898
20M
20.00 mi12:56:202:41:048:0412:09
8:57
#16144
21M
21.00 mi13:05:512:50:358:089:31
9:31
#16266
35K
21.75 mi13:12:302:57:148:096:39
8:54
#16396
23M
23.00 mi13:23:453:08:298:1211:15
9:00
#16513
24M
24.00 mi13:32:153:16:598:138:30
8:30
#16518
40K
24.85 mi13:39:353:24:198:147:20
8:35
#16470
25.2M
25.20 mi13:42:473:27:318:153:12
9:17
#16460
FINISH
26.22 mi13:51:103:35:548:158:23
8:14
#16458
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi174126161616113806(Top 48%)4043(Top 32%)4043(Top 226%)
10K6.21 mi3.10 mi16557+8555669+4925669+49215568(Top 54%)5057(Top 40%)5057(Top 283%)
15K9.32 mi3.11 mi15617+9405113+5565113+55613806(Top 48%)4043(Top 32%)4043(Top 226%)
20K12.43 mi3.11 mi14443+11744403+7104403+71011084(Top 38%)2633(Top 21%)2633(Top 147%)
HALF13.11 mi0.68 mi14293+1504308+954308+9511868(Top 41%)2981(Top 24%)2981(Top 167%)
25K15.53 mi2.42 mi14406-1134406-984406-9815055(Top 52%)4906(Top 39%)4906(Top 275%)
30K18.64 mi3.11 mi15898-14925341-9355341-93520730(Top 71%)8114(Top 65%)8114(Top 454%)
20M20.00 mi1.36 mi16144-2465506-1655506-16518680(Top 64%)7116(Top 57%)7116(Top 398%)
21M21.00 mi1.00 mi16266-1225598-925598-9218594(Top 64%)7105(Top 56%)7105(Top 398%)
35K21.75 mi0.75 mi16396-1305672-745672-7419571(Top 67%)7729(Top 61%)7729(Top 433%)
23M23.00 mi1.25 mi16513-1175771-995771-9918452(Top 64%)7192(Top 57%)7192(Top 403%)
24M24.00 mi1.00 mi16518-55784-135784-1316923(Top 58%)6423(Top 51%)6423(Top 360%)
40K24.85 mi0.85 mi16470+485787-35787-316173(Top 56%)6067(Top 48%)6067(Top 340%)
25.2M25.20 mi0.35 mi16460+105787578716258(Top 56%)6094(Top 48%)6094(Top 341%)
FINISH26.22 mi1.02 mi16458+25811-245811-2416594(Top 57%)6276(Top 50%)6276(Top 351%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21
+97ft-345ft

Overall

13806

Females

4043

F45-49

4043

5K→10K

3.1 - 6.2 mi

Top 54%
×5
+79ft-138ft

Overall

15568

Females

5057

F45-49

5057

10K→15K

6.2 - 9.3 mi

Top 48%
×3
+67ft-78ft

Overall

13806

Females

4043

F45-49

4043

15K→20K

9.3 - 12.4 mi

Top 38%
×5
+106ft-86ft

Overall

11084

Females

2633

F45-49

2633

20K→HALF

12.4 - 13.1 mi

Top 41%
×2
+19ft-37ft

Overall

11868

Females

2981

F45-49

2981

HALF→25K

13.1 - 15.5 mi

Top 52%
×4
+66ft-88ft

Overall

15055

Females

4906

F45-49

4906

25K→30K

15.5 - 18.6 mi

Top 71%
×9
+181ft-148ft

Overall

20730

Females

8114

F45-49

8114

30K→20M

18.6 - 20.0 mi

Top 64%
×5
+64ft-50ft

Overall

18680

Females

7116

F45-49

7116

20M→21M

20.0 - 21.0 mi

Top 64%
×8
+106ft-24ft

Overall

18594

Females

7105

F45-49

7105

21M→35K

21.0 - 21.8 mi

Top 67%
×7
+17ft-86ft

Overall

19571

Females

7729

F45-49

7729

35K→23M

21.8 - 23.0 mi

Top 64%
×5
+23ft-63ft

Overall

18452

Females

7192

F45-49

7192

23M→24M

23.0 - 24.0 mi

Top 58%
×6
+12ft-82ft

Overall

16923

Females

6423

F45-49

6423

24M→40K

24.0 - 24.9 mi

Top 56%
×1
+6ft-20ft

Overall

16173

Females

6067

F45-49

6067

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1
+13ft-16ft

Overall

16258

Females

6094

F45-49

6094

25.2M→FINISH

25.2 - 26.2 mi

Top 57%
×2
+22ft-21ft

Overall

16594

Females

6276

F45-49

6276

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3786*
Passed By
1407
Net Change
+954
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17412
5K → 10K916*61+855#17412#16557
10K → 15K956*16+940#16557#15617
15K → 20K1174*0+1174#15617#14443
20K → HALF1500+150#14443#14293
HALF → 25K105200-113#14293#14406
25K → 30K31200-1492#14406#15898
30K → 20M38200-246#15898#16144
20M → 21M60182-122#16144#16266
21M → 35K34164-130#16266#16396
35K → 23M68185-117#16396#16513
23M → 24M6570-5#16513#16518
24M → 40K9042+48#16518#16470
40K → 25.2M3626+10#16470#16460
25.2M → FINISH6361+2#16460#16458
TOTALS3786*1407+954

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing