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BOSTON MARATHON 2025

Jennifer Donaldson

Bib: 8534•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 13%
Gender (Female)
#0 / 12228
Top 2%
Division (F18-39)
#0 / 5469
Top 4%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:14
Rank: #3945
Start → 5K
20:14 | 6:31/mi
10K· 6.21 mi
40:41
Rank: #4128 (-183)
5K → 10K
20:27 | 6:35/mi
15K· 9.32 mi
1:01:16
Rank: #4205 (-77)
10K → 15K
20:35 | 6:38/mi
20K· 12.43 mi
1:22:04
Rank: #4204 (+1)
15K → 20K
20:48 | 6:42/mi
Half· 13.11 mi
1:26:41
Rank: #4270 (-66)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:43:07
Rank: #4282 (-12)
Half → 25K
16:26 | 6:47/mi
30K· 18.64 mi
2:04:35
Rank: #4182 (+100)
25K → 30K
21:28 | 6:55/mi
20M
2:14:02
Rank: #4123 (+59)
30K → 20M
9:27 | 6:57/mi
21M
2:21:21
Rank: #4084 (+39)
20M → 21M
7:19 | 7:19/mi
35K· 21.75 mi
2:26:19
Rank: #4024 (+60)
21M → 35K
4:58 | 6:38/mi
23M
2:35:00
Rank: #3946 (+78)
35K → 23M
8:41 | 6:56/mi
24M
2:41:43
Rank: #3879 (+67)
23M → 24M
6:43 | 6:43/mi
40K· 24.85 mi
2:47:37
Rank: #3825 (+54)
24M → 40K
5:54 | 6:54/mi
25.2M
2:50:06
Rank: #3780 (+45)
40K → 25.2M
2:29 | 7:12/mi
Finish· 26.22 mi
2:56:29
Rank: #3616 (+164)
25.2M → Finish
6:23 | 6:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:41
Pace6:37 /mi
2nd Half
Distance13.11 mi
Time1:29:48
Pace6:51 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:45:3620:146:3120:14
6:31
-
10K
6.21 mi11:06:0340:416:3320:27
6:35
+0:04
15K
9.32 mi11:26:381:01:166:3420:35
6:38
+0:03
20K
12.43 mi11:47:261:22:046:3620:48
6:42
+0:04
Half
13.11 mi11:52:031:26:416:374:37
6:46
+0:04
25K
15.53 mi12:08:291:43:076:3816:26
6:47
+0:01
30K
18.64 mi12:29:572:04:356:4121:28
6:55
+0:08
20M
20.00 mi12:39:242:14:026:429:27
6:57
+0:02
21M
21.00 mi12:46:432:21:216:447:19
7:19
+0:22
35K
21.75 mi12:51:412:26:196:444:58
6:38
-0:41
23M
23.00 mi13:00:222:35:006:448:41
6:56
+0:18
24M
24.00 mi13:07:052:41:436:446:43
6:43
-0:13
40K
24.85 mi13:12:592:47:376:455:54
6:54
+0:11
25.2M
25.20 mi13:15:282:50:066:452:29
7:12
+0:18
Finish
26.22 mi13:21:512:56:296:446:23
6:16
-0:56

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

6:16 /mi

Average Pace

6:44 /mi

Slowest Pace

7:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:01:11

69% of race

Time at Steady Pace

55:18

31% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:44 /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 mi10:45:3620:146:3120:14
6:31
#3945
10K
6.21 mi11:06:0340:416:3320:27
6:35
#4128
15K
9.32 mi11:26:381:01:166:3420:35
6:38
#4205
20K
12.43 mi11:47:261:22:046:3620:48
6:42
#4204
Half
13.11 mi11:52:031:26:416:374:37
6:46
#4270
25K
15.53 mi12:08:291:43:076:3816:26
6:47
#4282
30K
18.64 mi12:29:572:04:356:4121:28
6:55
#4182
20M
20.00 mi12:39:242:14:026:429:27
6:57
#4123
21M
21.00 mi12:46:432:21:216:447:19
7:19
#4084
35K
21.75 mi12:51:412:26:196:444:58
6:38
#4024
23M
23.00 mi13:00:222:35:006:448:41
6:56
#3946
24M
24.00 mi13:07:052:41:436:446:43
6:43
#3879
40K
24.85 mi13:12:592:47:376:455:54
6:54
#3825
25.2M
25.20 mi13:15:282:50:066:452:29
7:12
#3780
Finish
26.22 mi13:21:512:56:296:446:23
6:16
#3616
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi39452052054472(Top 16%)271(Top 2%)271(Top 5%)
10K6.21 mi3.10 mi4128-183231-26231-264338(Top 15%)255(Top 2%)255(Top 5%)
15K9.32 mi3.11 mi4205-77239-8239-84472(Top 16%)271(Top 2%)271(Top 5%)
20K12.43 mi3.11 mi4204+1242-3242-34402(Top 15%)278(Top 2%)278(Top 5%)
Half13.11 mi0.68 mi4270-66250-8250-85899(Top 21%)497(Top 4%)497(Top 9%)
25K15.53 mi2.42 mi4282-12256-6256-64721(Top 17%)358(Top 3%)358(Top 7%)
30K18.64 mi3.11 mi4182+100254+2254+24148(Top 15%)322(Top 3%)322(Top 6%)
20M20.00 mi1.36 mi4123+59253+1253+13855(Top 14%)298(Top 2%)298(Top 5%)
21M21.00 mi1.00 mi4084+392532533719(Top 13%)310(Top 3%)310(Top 6%)
35K21.75 mi0.75 mi4024+60255-2255-23208(Top 11%)257(Top 2%)257(Top 5%)
23M23.00 mi1.25 mi3946+78256-1256-13432(Top 12%)305(Top 2%)305(Top 6%)
24M24.00 mi1.00 mi3879+67258-2258-23087(Top 11%)278(Top 2%)278(Top 5%)
40K24.85 mi0.85 mi3825+54259-1259-13383(Top 12%)351(Top 3%)351(Top 6%)
25.2M25.20 mi0.35 mi3780+45253+6253+62224(Top 8%)217(Top 2%)217(Top 4%)
Finish26.22 mi1.02 mi3616+164238+15238+151781(Top 6%)127(Top 1%)127(Top 2%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4472

Females

271

F18-39

271

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4338

Females

255

F18-39

255

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4472

Females

271

F18-39

271

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

4402

Females

278

F18-39

278

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5899

Females

497

F18-39

497

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4721

Females

358

F18-39

358

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4148

Females

322

F18-39

322

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3855

Females

298

F18-39

298

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3719

Females

310

F18-39

310

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

3208

Females

257

F18-39

257

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3432

Females

305

F18-39

305

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

3087

Females

278

F18-39

278

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3383

Females

351

F18-39

351

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2224

Females

217

F18-39

217

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1781

Females

127

F18-39

127

Passing Analysis

Category:
Athletes Passed
1251
Passed By
922
Net Change
+329
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3945
5K → 10K81264-183#3945#4128
10K → 15K66143-77#4128#4205
15K → 20K103102+1#4205#4204
20K → Half975-66#4204#4270
Half → 25K8294-12#4270#4282
25K → 30K18888+100#4282#4182
30K → 20M9738+59#4182#4123
20M → 21M7435+39#4123#4084
21M → 35K7010+60#4084#4024
35K → 23M10931+78#4024#3946
23M → 24M8720+67#3946#3879
24M → 40K7117+54#3879#3825
40K → 25.2M483+45#3825#3780
25.2M → Finish1662+164#3780#3616
TOTALS1251922+329
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing