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BOSTON MARATHON 2026

Marcia Carlson

Bib: 25407•F

WI

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F60-64)
#0 / 782
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
29:15
3.11 mi
Rank: #24197
Start → 5K
29:15 | 9:25/mi
10K
57:32
6.21 mi
Rank: #23757 (+440)
5K → 10K
28:17 | 9:07/mi
15K
1:25:53
9.32 mi
Rank: #23604 (+153)
10K → 15K
28:21 | 9:08/mi
20K
1:54:23
12.43 mi
Rank: #23368 (+236)
15K → 20K
28:30 | 9:11/mi
HALF
2:00:33
13.11 mi
Rank: #23348 (+20)
20K → HALF
6:10 | 9:03/mi
25K
2:22:48
15.53 mi
Rank: #23071 (+277)
HALF → 25K
22:15 | 9:11/mi
30K
2:51:54
18.64 mi
Rank: #22731 (+340)
25K → 30K
29:06 | 9:22/mi
20M
3:04:40
20.00 mi
Rank: #22564 (+167)
30K → 20M
12:46 | 9:24/mi
21M
3:14:31
21.00 mi
Rank: #22400 (+164)
20M → 21M
9:51 | 9:51/mi
35K
3:21:34
21.75 mi
Rank: #22350 (+50)
21M → 35K
7:03 | 9:26/mi
23M
3:33:37
23.00 mi
Rank: #22255 (+95)
35K → 23M
12:03 | 9:38/mi
24M
3:43:06
24.00 mi
Rank: #22208 (+47)
23M → 24M
9:29 | 9:29/mi
40K
3:51:57
24.85 mi
Rank: #22247 (-39)
24M → 40K
8:51 | 10:22/mi
25.2M
3:55:49
25.20 mi
Rank: #22265 (-18)
40K → 25.2M
3:52 | 11:13/mi
FINISH
4:06:09
26.22 mi
Rank: #22337 (-72)
25.2M → FINISH
10:20 | 10:09/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:00:33
Pace9:12 /mi
2nd Half
Distance13.11 mi
Time2:05:36
Pace9:35 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:35:2929:159:2529:15
9:25
-
10K
6.21 mi12:03:4657:329:1628:17
9:07
-0:18
15K
9.32 mi12:32:071:25:539:1328:21
9:08
+0:01
20K
12.43 mi13:00:371:54:239:1328:30
9:11
+0:03
HALF
13.11 mi13:06:472:00:339:126:10
9:03
-0:08
25K
15.53 mi13:29:022:22:489:1222:15
9:11
+0:08
30K
18.64 mi13:58:082:51:549:1429:06
9:22
+0:11
20M
20.00 mi14:10:543:04:409:1512:46
9:24
+0:02
21M
21.00 mi14:20:453:14:319:169:51
9:51
+0:27
35K
21.75 mi14:27:483:21:349:177:03
9:26
-0:25
23M
23.00 mi14:39:513:33:379:1812:03
9:38
+0:12
24M
24.00 mi14:49:203:43:069:189:29
9:29
-0:09
40K
24.85 mi14:58:113:51:579:208:51
10:22
+0:53
25.2M
25.20 mi15:02:033:55:499:223:52
11:13
+0:51
FINISH
26.22 mi15:12:234:06:099:2410:20
10:09
-1:04

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

9:03 /mi

Average Pace

9:24 /mi

Slowest Pace

11:13 /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

34:27

14% of race

Time at Steady Pace

2:58:48

73% of race

Time at Slower Pace

32:54

13% of race

Average Pace: 9:23 /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 mi11:35:2929:159:2529:15
9:25
#24197
10K
6.21 mi12:03:4657:329:1628:17
9:07
#23757
15K
9.32 mi12:32:071:25:539:1328:21
9:08
#23604
20K
12.43 mi13:00:371:54:239:1328:30
9:11
#23368
HALF
13.11 mi13:06:472:00:339:126:10
9:03
#23348
25K
15.53 mi13:29:022:22:489:1222:15
9:11
#23071
30K
18.64 mi13:58:082:51:549:1429:06
9:22
#22731
20M
20.00 mi14:10:543:04:409:1512:46
9:24
#22564
21M
21.00 mi14:20:453:14:319:169:51
9:51
#22400
35K
21.75 mi14:27:483:21:349:177:03
9:26
#22350
23M
23.00 mi14:39:513:33:379:1812:03
9:38
#22255
24M
24.00 mi14:49:203:43:069:189:29
9:29
#22208
40K
24.85 mi14:58:113:51:579:208:51
10:22
#22247
25.2M
25.20 mi15:02:033:55:499:223:52
11:13
#22265
FINISH
26.22 mi15:12:234:06:099:2410:20
10:09
#22337
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi241979765976523230(Top 80%)9261(Top 74%)9261(Top 1184%)
10K6.21 mi3.10 mi23757+4409541+2249541+22423259(Top 80%)9291(Top 74%)9291(Top 1188%)
15K9.32 mi3.11 mi23604+1539457+849457+8423230(Top 80%)9261(Top 74%)9261(Top 1184%)
20K12.43 mi3.11 mi23368+2369343+1149343+11422654(Top 78%)8992(Top 71%)8992(Top 1150%)
HALF13.11 mi0.68 mi23348+209337+69337+622973(Top 79%)9150(Top 73%)9150(Top 1170%)
25K15.53 mi2.42 mi23071+2779199+1389199+13821941(Top 76%)8652(Top 69%)8652(Top 1106%)
30K18.64 mi3.11 mi22731+3409061+1389061+13821198(Top 73%)8372(Top 67%)8372(Top 1071%)
20M20.00 mi1.36 mi22564+1678997+648997+6420707(Top 71%)8204(Top 65%)8204(Top 1049%)
21M21.00 mi1.00 mi22400+1648912+858912+8519951(Top 69%)7837(Top 62%)7837(Top 1002%)
35K21.75 mi0.75 mi22350+508901+118901+1121551(Top 74%)8726(Top 69%)8726(Top 1116%)
23M23.00 mi1.25 mi22255+958871+308871+3021034(Top 72%)8488(Top 67%)8488(Top 1085%)
24M24.00 mi1.00 mi22208+478867+48867+421301(Top 73%)8697(Top 69%)8697(Top 1112%)
40K24.85 mi0.85 mi22247-398893-268893-2622855(Top 79%)9533(Top 76%)9533(Top 1219%)
25.2M25.20 mi0.35 mi22265-188912-198912-1922903(Top 79%)9546(Top 76%)9546(Top 1221%)
FINISH26.22 mi1.02 mi22337-728966-548966-5424213(Top 83%)10223(Top 81%)10223(Top 1307%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21
+97ft-345ft

Overall

23230

Females

9261

F60-64

9261

5K→10K

3.1 - 6.2 mi

Top 80%
×5
+79ft-138ft

Overall

23259

Females

9291

F60-64

9291

10K→15K

6.2 - 9.3 mi

Top 80%
×3
+67ft-78ft

Overall

23230

Females

9261

F60-64

9261

15K→20K

9.3 - 12.4 mi

Top 78%
×5
+106ft-86ft

Overall

22654

Females

8992

F60-64

8992

20K→HALF

12.4 - 13.1 mi

Top 79%
×2
+19ft-37ft

Overall

22973

Females

9150

F60-64

9150

HALF→25K

13.1 - 15.5 mi

Top 76%
×4
+66ft-88ft

Overall

21941

Females

8652

F60-64

8652

25K→30K

15.5 - 18.6 mi

Top 73%
×9
+181ft-148ft

Overall

21198

Females

8372

F60-64

8372

30K→20M

18.6 - 20.0 mi

Top 71%
×5
+64ft-50ft

Overall

20707

Females

8204

F60-64

8204

20M→21M

20.0 - 21.0 mi

Top 69%
×8
+106ft-24ft

Overall

19951

Females

7837

F60-64

7837

21M→35K

21.0 - 21.8 mi

Top 74%
×7
+17ft-86ft

Overall

21551

Females

8726

F60-64

8726

35K→23M

21.8 - 23.0 mi

Top 72%
×5
+23ft-63ft

Overall

21034

Females

8488

F60-64

8488

23M→24M

23.0 - 24.0 mi

Top 73%
×6
+12ft-82ft

Overall

21301

Females

8697

F60-64

8697

24M→40K

24.0 - 24.9 mi

Top 79%
×1
+6ft-20ft

Overall

22855

Females

9533

F60-64

9533

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1
+13ft-16ft

Overall

22903

Females

9546

F60-64

9546

25.2M→FINISH

25.2 - 26.2 mi

Top 83%
×2
+22ft-21ft

Overall

24213

Females

10223

F60-64

10223

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2407*
Passed By
547
Net Change
+1860
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24197
5K → 10K508*68+440#24197#23757
10K → 15K231*78+153#23757#23604
15K → 20K279*43+236#23604#23368
20K → HALF4424+20#23368#23348
HALF → 25K292*15+277#23348#23071
25K → 30K358*18+340#23071#22731
30K → 20M18215+167#22731#22564
20M → 21M17612+164#22564#22400
21M → 35K7323+50#22400#22350
35K → 23M12429+95#22350#22255
23M → 24M7629+47#22255#22208
24M → 40K3776-39#22208#22247
40K → 25.2M1331-18#22247#22265
25.2M → FINISH1486-72#22265#22337
TOTALS2407*547+1860

* 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

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing