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BOSTON MARATHON 2025

Kelsey Grimes

Bib: 14249•F

UT

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
25:52
Rank: #18883
Start → 5K
25:52 | 8:20/mi
10K· 6.21 mi
51:50
Rank: #18868 (+15)
5K → 10K
25:58 | 8:21/mi
15K· 9.32 mi
1:17:41
Rank: #18617 (+251)
10K → 15K
25:51 | 8:19/mi
20K· 12.43 mi
1:44:07
Rank: #18506 (+111)
15K → 20K
26:26 | 8:30/mi
Half· 13.11 mi
1:49:46
Rank: #18473 (+33)
20K → Half
5:39 | 8:17/mi
25K· 15.53 mi
2:10:09
Rank: #18123 (+350)
Half → 25K
20:23 | 8:24/mi
30K· 18.64 mi
2:39:17
Rank: #18413 (-290)
25K → 30K
29:08 | 9:23/mi
20M
2:51:23
Rank: #18223 (+190)
30K → 20M
12:06 | 8:54/mi
21M
3:00:58
Rank: #18117 (+106)
20M → 21M
9:35 | 9:35/mi
35K· 21.75 mi
3:07:35
Rank: #18085 (+32)
21M → 35K
6:37 | 8:51/mi
23M
3:19:53
Rank: #18230 (-145)
35K → 23M
12:18 | 9:49/mi
24M
3:28:57
Rank: #18198 (+32)
23M → 24M
9:04 | 9:04/mi
40K· 24.85 mi
3:36:36
Rank: #18109 (+89)
24M → 40K
7:39 | 8:57/mi
25.2M
3:40:13
Rank: #18129 (-20)
40K → 25.2M
3:37 | 10:29/mi
Finish· 26.22 mi
3:49:01
Rank: #18089 (+40)
25.2M → Finish
8:48 | 8:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:46
Pace8:22 /mi
2nd Half
Distance13.11 mi
Time1:59:15
Pace9:06 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:5125:528:2025:52
8:20
-
10K
6.21 mi11:45:4951:508:2125:58
8:21
+0:01
15K
9.32 mi12:11:401:17:418:2025:51
8:19
-0:02
20K
12.43 mi12:38:061:44:078:2326:26
8:30
+0:11
Half
13.11 mi12:43:451:49:468:225:39
8:17
-0:13
25K
15.53 mi13:04:082:10:098:2320:23
8:24
+0:07
30K
18.64 mi13:33:162:39:178:3329:08
9:23
+0:59
20M
20.00 mi13:45:222:51:238:3412:06
8:54
-0:29
21M
21.00 mi13:54:573:00:588:379:35
9:35
+0:41
35K
21.75 mi14:01:343:07:358:386:37
8:51
-0:44
23M
23.00 mi14:13:523:19:538:4112:18
9:49
+0:58
24M
24.00 mi14:22:563:28:578:429:04
9:04
-0:45
40K
24.85 mi14:30:353:36:368:437:39
8:57
-0:07
25.2M
25.20 mi14:34:123:40:138:443:37
10:29
+1:32
Finish
26.22 mi14:43:003:49:018:448:48
8:38
-1:51

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

8:17 /mi

Average Pace

8:44 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10:09

57% of race

Time at Steady Pace

44:14

19% of race

Time at Slower Pace

54:38

24% of race

Average Pace: 8:44 /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 mi11:19:5125:528:2025:52
8:20
#18883
10K
6.21 mi11:45:4951:508:2125:58
8:21
#18868
15K
9.32 mi12:11:401:17:418:2025:51
8:19
#18617
20K
12.43 mi12:38:061:44:078:2326:26
8:30
#18506
Half
13.11 mi12:43:451:49:468:225:39
8:17
#18473
25K
15.53 mi13:04:082:10:098:2320:23
8:24
#18123
30K
18.64 mi13:33:162:39:178:3329:08
9:23
#18413
20M
20.00 mi13:45:222:51:238:3412:06
8:54
#18223
21M
21.00 mi13:54:573:00:588:379:35
9:35
#18117
35K
21.75 mi14:01:343:07:358:386:37
8:51
#18085
23M
23.00 mi14:13:523:19:538:4112:18
9:49
#18230
24M
24.00 mi14:22:563:28:578:429:04
9:04
#18198
40K
24.85 mi14:30:353:36:368:437:39
8:57
#18109
25.2M
25.20 mi14:34:123:40:138:443:37
10:29
#18129
Finish
26.22 mi14:43:003:49:018:448:48
8:38
#18089
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi188836844684418199(Top 64%)6439(Top 53%)6439(Top 118%)
10K6.21 mi3.10 mi18868+156829+156829+1518934(Top 67%)6842(Top 56%)6842(Top 125%)
15K9.32 mi3.11 mi18617+2516689+1406689+14018199(Top 64%)6439(Top 53%)6439(Top 118%)
20K12.43 mi3.11 mi18506+1116626+636626+6318320(Top 64%)6513(Top 53%)6513(Top 119%)
Half13.11 mi0.68 mi18473+336597+296597+2917877(Top 63%)6256(Top 51%)6256(Top 114%)
25K15.53 mi2.42 mi18123+3506430+1676430+16716635(Top 59%)5655(Top 46%)5655(Top 103%)
30K18.64 mi3.11 mi18413-2906611-1816611-18119448(Top 68%)7362(Top 60%)7362(Top 135%)
20M20.00 mi1.36 mi18223+1906541+706541+7016299(Top 57%)5781(Top 47%)5781(Top 106%)
21M21.00 mi1.00 mi18117+1066501+406501+4016489(Top 58%)5977(Top 49%)5977(Top 109%)
35K21.75 mi0.75 mi18085+326503-26503-217514(Top 62%)6640(Top 54%)6640(Top 121%)
23M23.00 mi1.25 mi18230-1456618-1156618-11519880(Top 70%)7984(Top 65%)7984(Top 146%)
24M24.00 mi1.00 mi18198+326625-76625-717717(Top 62%)6883(Top 56%)6883(Top 126%)
40K24.85 mi0.85 mi18109+896608+176608+1716034(Top 56%)6061(Top 50%)6061(Top 111%)
25.2M25.20 mi0.35 mi18129-206626-186626-1818976(Top 67%)7615(Top 62%)7615(Top 139%)
Finish26.22 mi1.02 mi18089+406617+96617+917113(Top 60%)6618(Top 54%)6618(Top 121%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21stories
+97ft-345ft

Overall

18199

Females

6439

F18-39

6439

5K→10K

3.1 - 6.2 mi

Top 67%
×5stories
+79ft-138ft

Overall

18934

Females

6842

F18-39

6842

10K→15K

6.2 - 9.3 mi

Top 64%
×3stories
+67ft-78ft

Overall

18199

Females

6439

F18-39

6439

15K→20K

9.3 - 12.4 mi

Top 64%
×5stories
+106ft-86ft

Overall

18320

Females

6513

F18-39

6513

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

17877

Females

6256

F18-39

6256

Half→25K

13.1 - 15.5 mi

Top 59%
×4stories
+66ft-88ft

Overall

16635

Females

5655

F18-39

5655

25K→30K

15.5 - 18.6 mi

Top 68%
×9stories
+181ft-148ft

Overall

19448

Females

7362

F18-39

7362

30K→20M

18.6 - 20.0 mi

Top 57%
×5stories
+64ft-50ft

Overall

16299

Females

5781

F18-39

5781

20M→21M

20.0 - 21.0 mi

Top 58%
×8stories
+106ft-24ft

Overall

16489

Females

5977

F18-39

5977

21M→35K

21.0 - 21.8 mi

Top 62%
×7stories
+17ft-86ft

Overall

17514

Females

6640

F18-39

6640

35K→23M

21.8 - 23.0 mi

Top 70%
×5stories
+23ft-63ft

Overall

19880

Females

7984

F18-39

7984

23M→24M

23.0 - 24.0 mi

Top 62%
×6stories
+12ft-82ft

Overall

17717

Females

6883

F18-39

6883

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

16034

Females

6061

F18-39

6061

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

18976

Females

7615

F18-39

7615

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

17113

Females

6618

F18-39

6618

Passing Analysis

Category:
Athletes Passed
2241
Passed By
1447
Net Change
+794
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18883
5K → 10K259244+15#18883#18868
10K → 15K33988+251#18868#18617
15K → 20K247136+111#18617#18506
20K → Half5219+33#18506#18473
Half → 25K37121+350#18473#18123
25K → 30K157447-290#18123#18413
30K → 20M21929+190#18413#18223
20M → 21M16054+106#18223#18117
21M → 35K7139+32#18117#18085
35K → 23M64209-145#18085#18230
23M → 24M9159+32#18230#18198
24M → 40K11021+89#18198#18109
40K → 25.2M2343-20#18109#18129
25.2M → Finish7838+40#18129#18089
TOTALS22411447+794
📊

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