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BOSTON MARATHON 2025

Kaitlyn Brine

Bib: 30874•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
33:53
Rank: #27448
Start → 5K
33:53 | 10:54/mi
10K· 6.21 mi
1:10:34
Rank: #27691 (-243)
5K → 10K
36:41 | 11:48/mi
15K· 9.32 mi
1:48:42
Rank: #27778 (-87)
10K → 15K
38:08 | 12:16/mi
20K· 12.43 mi
2:28:07
Rank: #27759 (+19)
15K → 20K
39:25 | 12:41/mi
Half· 13.11 mi
2:36:21
Rank: #27751 (+8)
20K → Half
8:14 | 12:04/mi
25K· 15.53 mi
3:06:41
Rank: #27612 (+139)
Half → 25K
30:20 | 12:31/mi
30K· 18.64 mi
3:48:16
Rank: #27528 (+84)
25K → 30K
41:35 | 13:23/mi
20M
4:06:13
Rank: #27459 (+69)
30K → 20M
17:57 | 13:13/mi
21M
4:21:29
Rank: #27474 (-15)
20M → 21M
15:16 | 15:16/mi
35K· 21.75 mi
4:31:04
Rank: #27462 (+12)
21M → 35K
9:35 | 12:49/mi
23M
4:49:02
Rank: #27495 (-33)
35K → 23M
17:58 | 14:21/mi
24M
5:03:01
Rank: #27513 (-18)
23M → 24M
13:59 | 13:59/mi
40K· 24.85 mi
5:16:09
Rank: #27548 (-35)
24M → 40K
13:08 | 15:22/mi
25.2M
5:21:41
Rank: #27558 (-10)
40K → 25.2M
5:32 | 16:03/mi
Finish· 26.22 mi
5:35:00
Rank: #27579 (-21)
25.2M → Finish
13:19 | 13:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:36:21
Pace11:56 /mi
2nd Half
Distance13.11 mi
Time2:58:39
Pace13:38 /mi
📊Positive Split: 14.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:1933:5310:5433:53
10:54
-
10K
6.21 mi12:31:001:10:3411:2136:41
11:48
+0:54
15K
9.32 mi13:09:081:48:4211:4038:08
12:16
+0:28
20K
12.43 mi13:48:332:28:0711:5539:25
12:41
+0:25
Half
13.11 mi13:56:472:36:2111:568:14
12:04
-0:37
25K
15.53 mi14:27:073:06:4112:0130:20
12:31
+0:27
30K
18.64 mi15:08:423:48:1612:1541:35
13:23
+0:52
20M
20.00 mi15:26:394:06:1312:1917:57
13:13
-0:10
21M
21.00 mi15:41:554:21:2912:2715:16
15:16
+2:03
35K
21.75 mi15:51:304:31:0412:289:35
12:49
-2:27
23M
23.00 mi16:09:284:49:0212:3417:58
14:21
+1:32
24M
24.00 mi16:23:275:03:0112:3813:59
13:59
-0:22
40K
24.85 mi16:36:355:16:0912:4313:08
15:22
+1:23
25.2M
25.20 mi16:42:075:21:4112:465:32
16:03
+0:41
Finish
26.22 mi16:55:265:35:0012:4713:19
13:04
-2:59

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

10:54 /mi

Average Pace

12:47 /mi

Slowest Pace

16:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:56

35% of race

Time at Steady Pace

2:32:11

45% of race

Time at Slower Pace

1:05:53

20% of race

Average Pace: 12:47 /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 mi11:54:1933:5310:5433:53
10:54
#27448
10K
6.21 mi12:31:001:10:3411:2136:41
11:48
#27691
15K
9.32 mi13:09:081:48:4211:4038:08
12:16
#27778
20K
12.43 mi13:48:332:28:0711:5539:25
12:41
#27759
Half
13.11 mi13:56:472:36:2111:568:14
12:04
#27751
25K
15.53 mi14:27:073:06:4112:0130:20
12:31
#27612
30K
18.64 mi15:08:423:48:1612:1541:35
13:23
#27528
20M
20.00 mi15:26:394:06:1312:1917:57
13:13
#27459
21M
21.00 mi15:41:554:21:2912:2715:16
15:16
#27474
35K
21.75 mi15:51:304:31:0412:289:35
12:49
#27462
23M
23.00 mi16:09:284:49:0212:3417:58
14:21
#27495
24M
24.00 mi16:23:275:03:0112:3813:59
13:59
#27513
40K
24.85 mi16:36:355:16:0912:4313:08
15:22
#27548
25.2M
25.20 mi16:42:075:21:4112:465:32
16:03
#27558
Finish
26.22 mi16:55:265:35:0012:4713:19
13:04
#27579
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi27448116101161027802(Top 98%)11861(Top 97%)11861(Top 217%)
10K6.21 mi3.10 mi27691-24311764-15411764-15427834(Top 98%)11861(Top 97%)11861(Top 217%)
15K9.32 mi3.11 mi27778-8711830-6611830-6627802(Top 98%)11861(Top 97%)11861(Top 217%)
20K12.43 mi3.11 mi27759+19118301183027648(Top 97%)11789(Top 96%)11789(Top 216%)
Half13.11 mi0.68 mi27751+811828+211828+227493(Top 97%)11709(Top 96%)11709(Top 214%)
25K15.53 mi2.42 mi27612+13911742+8611742+8626934(Top 95%)11389(Top 93%)11389(Top 208%)
30K18.64 mi3.11 mi27528+8411716+2611716+2627038(Top 95%)11517(Top 94%)11517(Top 211%)
20M20.00 mi1.36 mi27459+6911685+3111685+3126643(Top 94%)11364(Top 93%)11364(Top 208%)
21M21.00 mi1.00 mi27474-1511697-1211697-1227358(Top 96%)11755(Top 96%)11755(Top 215%)
35K21.75 mi0.75 mi27462+1211693+411693+426785(Top 94%)11482(Top 94%)11482(Top 210%)
23M23.00 mi1.25 mi27495-3311716-2311716-2327569(Top 97%)11892(Top 97%)11892(Top 217%)
24M24.00 mi1.00 mi27513-1811734-1811734-1827630(Top 97%)11953(Top 98%)11953(Top 219%)
40K24.85 mi0.85 mi27548-3511757-2311757-2327920(Top 98%)12064(Top 99%)12064(Top 221%)
25.2M25.20 mi0.35 mi27558-1011764-711764-727720(Top 98%)11989(Top 98%)11989(Top 219%)
Finish26.22 mi1.02 mi27579-2111781-1711781-1727655(Top 97%)11935(Top 98%)11935(Top 218%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21stories
+97ft-345ft

Overall

27802

Females

11861

F18-39

11861

5K→10K

3.1 - 6.2 mi

Top 98%
×5stories
+79ft-138ft

Overall

27834

Females

11861

F18-39

11861

10K→15K

6.2 - 9.3 mi

Top 98%
×3stories
+67ft-78ft

Overall

27802

Females

11861

F18-39

11861

15K→20K

9.3 - 12.4 mi

Top 97%
×5stories
+106ft-86ft

Overall

27648

Females

11789

F18-39

11789

20K→Half

12.4 - 13.1 mi

Top 97%
×2stories
+19ft-37ft

Overall

27493

Females

11709

F18-39

11709

Half→25K

13.1 - 15.5 mi

Top 95%
×4stories
+66ft-88ft

Overall

26934

Females

11389

F18-39

11389

25K→30K

15.5 - 18.6 mi

Top 95%
×9stories
+181ft-148ft

Overall

27038

Females

11517

F18-39

11517

30K→20M

18.6 - 20.0 mi

Top 94%
×5stories
+64ft-50ft

Overall

26643

Females

11364

F18-39

11364

20M→21M

20.0 - 21.0 mi

Top 96%
×8stories
+106ft-24ft

Overall

27358

Females

11755

F18-39

11755

21M→35K

21.0 - 21.8 mi

Top 94%
×7stories
+17ft-86ft

Overall

26785

Females

11482

F18-39

11482

35K→23M

21.8 - 23.0 mi

Top 97%
×5stories
+23ft-63ft

Overall

27569

Females

11892

F18-39

11892

23M→24M

23.0 - 24.0 mi

Top 97%
×6stories
+12ft-82ft

Overall

27630

Females

11953

F18-39

11953

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

27920

Females

12064

F18-39

12064

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

27720

Females

11989

F18-39

11989

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2stories
+22ft-21ft

Overall

27655

Females

11935

F18-39

11935

Passing Analysis

Category:
Athletes Passed
574
Passed By
705
Net Change
-131
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27448
5K → 10K39282-243#27448#27691
10K → 15K50137-87#27691#27778
15K → 20K7253+19#27778#27759
20K → Half1911+8#27759#27751
Half → 25K1445+139#27751#27612
25K → 30K10521+84#27612#27528
30K → 20M712+69#27528#27459
20M → 21M1227-15#27459#27474
21M → 35K208+12#27474#27462
35K → 23M1144-33#27462#27495
23M → 24M1331-18#27495#27513
24M → 40K742-35#27513#27548
40K → 25.2M212-10#27548#27558
25.2M → Finish930-21#27558#27579
TOTALS574705-131
📊

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