Boston Marathon logo
BOSTON MARATHON 2024

Marilyn Tarkalson

Bib: 19670•F

ID

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Top 37%
Gender (Female)
#0 / 10924
Top 22%
Masters (Masters Women)
#0 / 6263
Top 11%
Division (F45-49)
#0 / 1753
Top 12%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:51
Rank: #12140
Start → 5K
23:51 | 7:41/mi
10K· 6.21 mi
47:39
Rank: #11824 (+316)
5K → 10K
23:48 | 7:40/mi
15K· 9.32 mi
1:11:22
Rank: #11393 (+431)
10K → 15K
23:43 | 7:38/mi
20K· 12.43 mi
1:35:34
Rank: #11089 (+304)
15K → 20K
24:12 | 7:47/mi
Half· 13.11 mi
1:40:52
Rank: #11079 (+10)
20K → Half
5:18 | 7:46/mi
25K· 15.53 mi
2:01:04
Rank: #11229 (-150)
Half → 25K
20:12 | 8:20/mi
30K· 18.64 mi
2:26:49
Rank: #10781 (+448)
25K → 30K
25:45 | 8:17/mi
20M
2:38:16
Rank: #10584 (+197)
30K → 20M
11:27 | 8:26/mi
21M
2:47:21
Rank: #10416 (+168)
20M → 21M
9:05 | 9:05/mi
35K· 21.75 mi
2:53:34
Rank: #10350 (+66)
21M → 35K
6:13 | 8:19/mi
23M
3:04:01
Rank: #10129 (+221)
35K → 23M
10:27 | 8:21/mi
24M
3:11:57
Rank: #9903 (+226)
23M → 24M
7:56 | 7:56/mi
40K· 24.85 mi
3:18:51
Rank: #9718 (+185)
24M → 40K
6:54 | 8:04/mi
25.2M
3:21:51
Rank: #9610 (+108)
40K → 25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
3:29:32
Rank: #9443 (+167)
25.2M → Finish
7:41 | 7:32/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:52
Pace7:42 /mi
2nd Half
Distance13.11 mi
Time1:48:40
Pace8:17 /mi
📊Positive Split: 7.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:0023:517:4123:51
7:41
-
10K
6.21 mi11:42:4847:397:4023:48
7:40
-0:01
15K
9.32 mi12:06:311:11:227:3923:43
7:38
-0:02
20K
12.43 mi12:30:431:35:347:4124:12
7:47
+0:09
Half
13.11 mi12:36:011:40:527:425:18
7:46
-0:01
25K
15.53 mi12:56:132:01:047:4820:12
8:20
+0:34
30K
18.64 mi13:21:582:26:497:5325:45
8:17
-0:03
20M
20.00 mi13:33:252:38:167:5511:27
8:26
+0:09
21M
21.00 mi13:42:302:47:217:589:05
9:05
+0:39
35K
21.75 mi13:48:432:53:347:596:13
8:19
-0:46
23M
23.00 mi13:59:103:04:018:0010:27
8:21
+0:02
24M
24.00 mi14:07:063:11:578:007:56
7:56
-0:25
40K
24.85 mi14:14:003:18:518:006:54
8:04
+0:08
25.2M
25.20 mi14:17:003:21:518:013:00
8:42
+0:38
Finish
26.22 mi14:24:413:29:328:007:41
7:32
-1:10

Checkpoints & Pacing

📈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

7:32 /mi

Average Pace

8:00 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:33

52% of race

Time at Steady Pace

14:50

7% of race

Time at Slower Pace

1:26:09

41% of race

Average Pace: 7:59 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:19:0023:517:4123:51
7:41
#12140
10K
6.21 mi11:42:4847:397:4023:48
7:40
#11824
15K
9.32 mi12:06:311:11:227:3923:43
7:38
#11393
20K
12.43 mi12:30:431:35:347:4124:12
7:47
#11089
Half
13.11 mi12:36:011:40:527:425:18
7:46
#11079
25K
15.53 mi12:56:132:01:047:4820:12
8:20
#11229
30K
18.64 mi13:21:582:26:497:5325:45
8:17
#10781
20M
20.00 mi13:33:252:38:167:5511:27
8:26
#10584
21M
21.00 mi13:42:302:47:217:589:05
9:05
#10416
35K
21.75 mi13:48:432:53:347:596:13
8:19
#10350
23M
23.00 mi13:59:103:04:018:0010:27
8:21
#10129
24M
24.00 mi14:07:063:11:578:007:56
7:56
#9903
40K
24.85 mi14:14:003:18:518:006:54
8:04
#9718
25.2M
25.20 mi14:17:003:21:518:013:00
8:42
#9610
Finish
26.22 mi14:24:413:29:328:007:41
7:32
#9443
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi121403209320910701(Top 42%)2530(Top 23%)2530(Top 144%)
10K6.21 mi3.10 mi11824+3163069+1403069+14011560(Top 45%)2953(Top 27%)2953(Top 168%)
15K9.32 mi3.11 mi11393+4312858+2112858+21110701(Top 42%)2530(Top 23%)2530(Top 144%)
20K12.43 mi3.11 mi11089+3042712+1462712+14610373(Top 41%)2514(Top 23%)2514(Top 143%)
Half13.11 mi0.68 mi11079+102709+32709+311112(Top 43%)2852(Top 26%)2852(Top 163%)
25K15.53 mi2.42 mi11229-1502844-1352844-13512158(Top 48%)3598(Top 33%)3598(Top 205%)
30K18.64 mi3.11 mi10781+4482709+1352709+1359499(Top 37%)2458(Top 23%)2458(Top 140%)
20M20.00 mi1.36 mi10584+1972670+392670+399052(Top 35%)2479(Top 23%)2479(Top 141%)
21M21.00 mi1.00 mi10416+1682639+312639+318961(Top 35%)2671(Top 24%)2671(Top 152%)
35K21.75 mi0.75 mi10350+66263926399645(Top 38%)3025(Top 28%)3025(Top 173%)
23M23.00 mi1.25 mi10129+2212589+502589+507634(Top 30%)2212(Top 20%)2212(Top 126%)
24M24.00 mi1.00 mi9903+2262528+612528+616299(Top 25%)1670(Top 15%)1670(Top 95%)
40K24.85 mi0.85 mi9718+1852475+532475+536175(Top 24%)1740(Top 16%)1740(Top 99%)
25.2M25.20 mi0.35 mi9610+1082436+392436+395329(Top 21%)1432(Top 13%)1432(Top 82%)
Finish26.22 mi1.02 mi9443+1672398+382398+385892(Top 23%)1606(Top 15%)1606(Top 92%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21stories
+97ft-345ft

Overall

10701

Females

2530

F45-49

2530

5K→10K

3.1 - 6.2 mi

Top 45%
×5stories
+79ft-138ft

Overall

11560

Females

2953

F45-49

2953

10K→15K

6.2 - 9.3 mi

Top 42%
×3stories
+67ft-78ft

Overall

10701

Females

2530

F45-49

2530

15K→20K

9.3 - 12.4 mi

Top 41%
×5stories
+106ft-86ft

Overall

10373

Females

2514

F45-49

2514

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

11112

Females

2852

F45-49

2852

Half→25K

13.1 - 15.5 mi

Top 48%
×4stories
+66ft-88ft

Overall

12158

Females

3598

F45-49

3598

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

9499

Females

2458

F45-49

2458

30K→20M

18.6 - 20.0 mi

Top 35%
×5stories
+64ft-50ft

Overall

9052

Females

2479

F45-49

2479

20M→21M

20.0 - 21.0 mi

Top 35%
×8stories
+106ft-24ft

Overall

8961

Females

2671

F45-49

2671

21M→35K

21.0 - 21.8 mi

Top 38%
×7stories
+17ft-86ft

Overall

9645

Females

3025

F45-49

3025

35K→23M

21.8 - 23.0 mi

Top 30%
×5stories
+23ft-63ft

Overall

7634

Females

2212

F45-49

2212

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

6299

Females

1670

F45-49

1670

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6175

Females

1740

F45-49

1740

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5329

Females

1432

F45-49

1432

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

5892

Females

1606

F45-49

1606

Passing Analysis

Category:
Athletes Passed
3591*
Passed By
894
Net Change
+2697
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12140
5K → 10K461145+316#12140#11824
10K → 15K48049+431#11824#11393
15K → 20K37975+304#11393#11089
20K → Half4030+10#11089#11079
Half → 25K168318-150#11079#11229
25K → 30K53789+448#11229#10781
30K → 20M23538+197#10781#10584
20M → 21M22254+168#10584#10416
21M → 35K10337+66#10416#10350
35K → 23M24524+221#10350#10129
23M → 24M230*4+226#10129#9903
24M → 40K19712+185#9903#9718
40K → 25.2M1135+108#9718#9610
25.2M → Finish18114+167#9610#9443
TOTALS3591*894+2697

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

📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

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

.gpx files up to 10MB

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