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BOSTON MARATHON 2025

Niamh Jacques

Bib: 31092•F

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
34:02
Rank: #27512
Start → 5K
34:02 | 10:57/mi
10K· 6.21 mi
1:09:16
Rank: #27481 (+31)
5K → 10K
35:14 | 11:20/mi
15K· 9.32 mi
1:46:15
Rank: #27534 (-53)
10K → 15K
36:59 | 11:54/mi
20K· 12.43 mi
2:24:00
Rank: #27462 (+72)
15K → 20K
37:45 | 12:09/mi
Half· 13.11 mi
2:32:10
Rank: #27473 (-11)
20K → Half
8:10 | 11:58/mi
25K· 15.53 mi
3:03:50
Rank: #27454 (+19)
Half → 25K
31:40 | 13:04/mi
30K· 18.64 mi
3:47:11
Rank: #27476 (-22)
25K → 30K
43:21 | 13:57/mi
20M
4:06:33
Rank: #27475 (+1)
30K → 20M
19:22 | 14:15/mi
21M
4:20:30
Rank: #27431 (+44)
20M → 21M
13:57 | 13:57/mi
35K· 21.75 mi
4:30:26
Rank: #27440 (-9)
21M → 35K
9:56 | 13:17/mi
23M
4:47:46
Rank: #27449 (-9)
35K → 23M
17:20 | 13:51/mi
24M
5:00:54
Rank: #27438 (+11)
23M → 24M
13:08 | 13:08/mi
40K· 24.85 mi
5:12:23
Rank: #27419 (+19)
24M → 40K
11:29 | 13:26/mi
25.2M
5:17:17
Rank: #27418 (+1)
40K → 25.2M
4:54 | 14:13/mi
Finish· 26.22 mi
5:28:01
Rank: #27359 (+59)
25.2M → Finish
10:44 | 10:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:32:10
Pace11:36 /mi
2nd Half
Distance13.11 mi
Time2:55:51
Pace13:25 /mi
📊Positive Split: 15.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:59:1434:0210:5734:02
10:57
-
10K
6.21 mi12:34:281:09:1611:0935:14
11:20
+0:23
15K
9.32 mi13:11:271:46:1511:2436:59
11:54
+0:34
20K
12.43 mi13:49:122:24:0011:3537:45
12:09
+0:15
Half
13.11 mi13:57:222:32:1011:368:10
11:58
-0:11
25K
15.53 mi14:29:023:03:5011:5031:40
13:04
+1:06
30K
18.64 mi15:12:233:47:1112:1143:21
13:57
+0:53
20M
20.00 mi15:31:454:06:3312:2019:22
14:15
+0:18
21M
21.00 mi15:45:424:20:3012:2413:57
13:57
-0:18
35K
21.75 mi15:55:384:30:2612:269:56
13:17
-0:40
23M
23.00 mi16:12:584:47:4612:3117:20
13:51
+0:34
24M
24.00 mi16:26:065:00:5412:3213:08
13:08
-0:43
40K
24.85 mi16:37:355:12:2312:3411:29
13:26
+0:18
25.2M
25.20 mi16:42:295:17:1712:354:54
14:13
+0:47
Finish
26.22 mi16:53:135:28:0112:3110:44
10:32
-3:41

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

10:32 /mi

Average Pace

12:31 /mi

Slowest Pace

14:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:42:54

50% of race

Time at Steady Pace

1:06:13

20% of race

Time at Slower Pace

1:38:54

30% of race

Average Pace: 12:31 /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 mi11:59:1434:0210:5734:02
10:57
#27512
10K
6.21 mi12:34:281:09:1611:0935:14
11:20
#27481
15K
9.32 mi13:11:271:46:1511:2436:59
11:54
#27534
20K
12.43 mi13:49:122:24:0011:3537:45
12:09
#27462
Half
13.11 mi13:57:222:32:1011:368:10
11:58
#27473
25K
15.53 mi14:29:023:03:5011:5031:40
13:04
#27454
30K
18.64 mi15:12:233:47:1112:1143:21
13:57
#27476
20M
20.00 mi15:31:454:06:3312:2019:22
14:15
#27475
21M
21.00 mi15:45:424:20:3012:2413:57
13:57
#27431
35K
21.75 mi15:55:384:30:2612:269:56
13:17
#27440
23M
23.00 mi16:12:584:47:4612:3117:20
13:51
#27449
24M
24.00 mi16:26:065:00:5412:3213:08
13:08
#27438
40K
24.85 mi16:37:355:12:2312:3411:29
13:26
#27419
25.2M
25.20 mi16:42:295:17:1712:354:54
14:13
#27418
Finish
26.22 mi16:53:135:28:0112:3110:44
10:32
#27359
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi27512116541165427561(Top 97%)11726(Top 96%)11726(Top 214%)
10K6.21 mi3.10 mi27481+3111631+2311631+2327431(Top 97%)11625(Top 95%)11625(Top 213%)
15K9.32 mi3.11 mi27534-5311679-4811679-4827561(Top 97%)11726(Top 96%)11726(Top 214%)
20K12.43 mi3.11 mi27462+7211637+4211637+4227240(Top 96%)11546(Top 94%)11546(Top 211%)
Half13.11 mi0.68 mi27473-1111646-911646-927436(Top 97%)11675(Top 95%)11675(Top 213%)
25K15.53 mi2.42 mi27454+1911652-611652-627334(Top 96%)11610(Top 95%)11610(Top 212%)
30K18.64 mi3.11 mi27476-2211685-3311685-3327473(Top 97%)11762(Top 96%)11762(Top 215%)
20M20.00 mi1.36 mi27475+111698-1311698-1327461(Top 97%)11797(Top 96%)11797(Top 216%)
21M21.00 mi1.00 mi27431+4411665+3311665+3326180(Top 92%)11146(Top 91%)11146(Top 204%)
35K21.75 mi0.75 mi27440-911675-1011675-1027185(Top 96%)11684(Top 96%)11684(Top 214%)
23M23.00 mi1.25 mi27449-911691-1611691-1627183(Top 96%)11697(Top 96%)11697(Top 214%)
24M24.00 mi1.00 mi27438+1111692-111692-126987(Top 95%)11630(Top 95%)11630(Top 213%)
40K24.85 mi0.85 mi27419+1911681+1111681+1126701(Top 94%)11501(Top 94%)11501(Top 210%)
25.2M25.20 mi0.35 mi27418+1116811168126470(Top 93%)11423(Top 93%)11423(Top 209%)
Finish26.22 mi1.02 mi27359+5911649+3211649+3224329(Top 86%)10329(Top 84%)10329(Top 189%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21stories
+97ft-345ft

Overall

27561

Females

11726

F18-39

11726

5K→10K

3.1 - 6.2 mi

Top 97%
×5stories
+79ft-138ft

Overall

27431

Females

11625

F18-39

11625

10K→15K

6.2 - 9.3 mi

Top 97%
×3stories
+67ft-78ft

Overall

27561

Females

11726

F18-39

11726

15K→20K

9.3 - 12.4 mi

Top 96%
×5stories
+106ft-86ft

Overall

27240

Females

11546

F18-39

11546

20K→Half

12.4 - 13.1 mi

Top 97%
×2stories
+19ft-37ft

Overall

27436

Females

11675

F18-39

11675

Half→25K

13.1 - 15.5 mi

Top 96%
×4stories
+66ft-88ft

Overall

27334

Females

11610

F18-39

11610

25K→30K

15.5 - 18.6 mi

Top 97%
×9stories
+181ft-148ft

Overall

27473

Females

11762

F18-39

11762

30K→20M

18.6 - 20.0 mi

Top 97%
×5stories
+64ft-50ft

Overall

27461

Females

11797

F18-39

11797

20M→21M

20.0 - 21.0 mi

Top 92%
×8stories
+106ft-24ft

Overall

26180

Females

11146

F18-39

11146

21M→35K

21.0 - 21.8 mi

Top 96%
×7stories
+17ft-86ft

Overall

27185

Females

11684

F18-39

11684

35K→23M

21.8 - 23.0 mi

Top 96%
×5stories
+23ft-63ft

Overall

27183

Females

11697

F18-39

11697

23M→24M

23.0 - 24.0 mi

Top 95%
×6stories
+12ft-82ft

Overall

26987

Females

11630

F18-39

11630

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

26701

Females

11501

F18-39

11501

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

26470

Females

11423

F18-39

11423

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

24329

Females

10329

F18-39

10329

Passing Analysis

Category:
Athletes Passed
681
Passed By
528
Net Change
+153
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27512
5K → 10K12493+31#27512#27481
10K → 15K65118-53#27481#27534
15K → 20K11240+72#27534#27462
20K → Half1728-11#27462#27473
Half → 25K7556+19#27473#27454
25K → 30K5375-22#27454#27476
30K → 20M3231+1#27476#27475
20M → 21M484+44#27475#27431
21M → 35K918-9#27431#27440
35K → 23M2433-9#27440#27449
23M → 24M2413+11#27449#27438
24M → 40K289+19#27438#27419
40K → 25.2M109+1#27419#27418
25.2M → Finish601+59#27418#27359
TOTALS681528+153
📊

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