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BOSTON MARATHON 2025

Carson Kemp

Bib: 27318•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
33:08
Rank: #27068
Start → 5K
33:08 | 10:40/mi
10K· 6.21 mi
1:08:10
Rank: #27270 (-202)
5K → 10K
35:02 | 11:17/mi
15K· 9.32 mi
1:43:31
Rank: #27205 (+65)
10K → 15K
35:21 | 11:23/mi
20K· 12.43 mi
2:19:30
Rank: #27069 (+136)
15K → 20K
35:59 | 11:35/mi
Half· 13.11 mi
2:26:58
Rank: #27032 (+37)
20K → Half
7:28 | 10:57/mi
25K· 15.53 mi
2:55:36
Rank: #26919 (+113)
Half → 25K
28:38 | 11:49/mi
30K· 18.64 mi
3:32:42
Rank: #26664 (+255)
25K → 30K
37:06 | 11:56/mi
20M
3:48:47
Rank: #26561 (+103)
30K → 20M
16:05 | 11:50/mi
21M
4:01:45
Rank: #26490 (+71)
20M → 21M
12:58 | 12:58/mi
35K· 21.75 mi
4:10:03
Rank: #26429 (+61)
21M → 35K
8:18 | 11:06/mi
23M
4:24:51
Rank: #26362 (+67)
35K → 23M
14:48 | 11:49/mi
24M
4:36:05
Rank: #26284 (+78)
23M → 24M
11:14 | 11:14/mi
40K· 24.85 mi
4:45:48
Rank: #26215 (+69)
24M → 40K
9:43 | 11:22/mi
25.2M
4:49:50
Rank: #26191 (+24)
40K → 25.2M
4:02 | 11:42/mi
Finish· 26.22 mi
5:00:35
Rank: #26158 (+33)
25.2M → Finish
10:45 | 10:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:26:58
Pace11:13 /mi
2nd Half
Distance13.11 mi
Time2:33:37
Pace11:43 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:3533:0810:4033:08
10:40
-
10K
6.21 mi12:30:371:08:1010:5835:02
11:17
+0:37
15K
9.32 mi13:05:581:43:3111:0635:21
11:23
+0:06
20K
12.43 mi13:41:572:19:3011:1435:59
11:35
+0:12
Half
13.11 mi13:49:252:26:5811:137:28
10:57
-0:38
25K
15.53 mi14:18:032:55:3611:1828:38
11:49
+0:52
30K
18.64 mi14:55:093:32:4211:2537:06
11:56
+0:07
20M
20.00 mi15:11:143:48:4711:2616:05
11:50
-0:06
21M
21.00 mi15:24:124:01:4511:3112:58
12:58
+1:08
35K
21.75 mi15:32:304:10:0311:308:18
11:06
-1:52
23M
23.00 mi15:47:184:24:5111:3114:48
11:49
+0:43
24M
24.00 mi15:58:324:36:0511:3011:14
11:14
-0:35
40K
24.85 mi16:08:154:45:4811:309:43
11:22
+0:08
25.2M
25.20 mi16:12:174:49:5011:304:02
11:42
+0:20
Finish
26.22 mi16:23:025:00:3511:2810:45
10:33
-1:09

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

10:33 /mi

Average Pace

11:28 /mi

Slowest Pace

12:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

51:21

17% of race

Time at Steady Pace

2:15:37

45% of race

Time at Slower Pace

1:53:37

38% of race

Average Pace: 11:28 /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 mi11:55:3533:0810:4033:08
10:40
#27068
10K
6.21 mi12:30:371:08:1010:5835:02
11:17
#27270
15K
9.32 mi13:05:581:43:3111:0635:21
11:23
#27205
20K
12.43 mi13:41:572:19:3011:1435:59
11:35
#27069
Half
13.11 mi13:49:252:26:5811:137:28
10:57
#27032
25K
15.53 mi14:18:032:55:3611:1828:38
11:49
#26919
30K
18.64 mi14:55:093:32:4211:2537:06
11:56
#26664
20M
20.00 mi15:11:143:48:4711:2616:05
11:50
#26561
21M
21.00 mi15:24:124:01:4511:3112:58
12:58
#26490
35K
21.75 mi15:32:304:10:0311:308:18
11:06
#26429
23M
23.00 mi15:47:184:24:5111:3114:48
11:49
#26362
24M
24.00 mi15:58:324:36:0511:3011:14
11:14
#26284
40K
24.85 mi16:08:154:45:4811:309:43
11:22
#26215
25.2M
25.20 mi16:12:174:49:5011:304:02
11:42
#26191
Finish
26.22 mi16:23:025:00:3511:2810:45
10:33
#26158
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi27068113661136627120(Top 95%)11448(Top 94%)11448(Top 209%)
10K6.21 mi3.10 mi27270-20211517-15111517-15127354(Top 96%)11579(Top 95%)11579(Top 212%)
15K9.32 mi3.11 mi27205+6511471+4611471+4627120(Top 95%)11448(Top 94%)11448(Top 209%)
20K12.43 mi3.11 mi27069+13611410+6111410+6126718(Top 94%)11225(Top 92%)11225(Top 205%)
Half13.11 mi0.68 mi27032+3711393+1711393+1726415(Top 93%)11070(Top 91%)11070(Top 202%)
25K15.53 mi2.42 mi26919+11311330+6311330+6326220(Top 92%)10983(Top 90%)10983(Top 201%)
30K18.64 mi3.11 mi26664+25511199+13111199+13125505(Top 90%)10678(Top 87%)10678(Top 195%)
20M20.00 mi1.36 mi26561+10311152+4711152+4725028(Top 88%)10491(Top 86%)10491(Top 192%)
21M21.00 mi1.00 mi26490+7111117+3511117+3524991(Top 88%)10567(Top 86%)10567(Top 193%)
35K21.75 mi0.75 mi26429+6111098+1911098+1924400(Top 86%)10284(Top 84%)10284(Top 188%)
23M23.00 mi1.25 mi26362+6711069+2911069+2924796(Top 87%)10498(Top 86%)10498(Top 192%)
24M24.00 mi1.00 mi26284+7811039+3011039+3024438(Top 86%)10348(Top 85%)10348(Top 189%)
40K24.85 mi0.85 mi26215+6911005+3411005+3423868(Top 84%)10112(Top 83%)10112(Top 185%)
25.2M25.20 mi0.35 mi26191+2410998+710998+722499(Top 79%)9422(Top 77%)9422(Top 172%)
Finish26.22 mi1.02 mi26158+3310979+1910979+1924369(Top 86%)10346(Top 85%)10346(Top 189%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21stories
+97ft-345ft

Overall

27120

Females

11448

F18-39

11448

5K→10K

3.1 - 6.2 mi

Top 96%
×5stories
+79ft-138ft

Overall

27354

Females

11579

F18-39

11579

10K→15K

6.2 - 9.3 mi

Top 95%
×3stories
+67ft-78ft

Overall

27120

Females

11448

F18-39

11448

15K→20K

9.3 - 12.4 mi

Top 94%
×5stories
+106ft-86ft

Overall

26718

Females

11225

F18-39

11225

20K→Half

12.4 - 13.1 mi

Top 93%
×2stories
+19ft-37ft

Overall

26415

Females

11070

F18-39

11070

Half→25K

13.1 - 15.5 mi

Top 92%
×4stories
+66ft-88ft

Overall

26220

Females

10983

F18-39

10983

25K→30K

15.5 - 18.6 mi

Top 90%
×9stories
+181ft-148ft

Overall

25505

Females

10678

F18-39

10678

30K→20M

18.6 - 20.0 mi

Top 88%
×5stories
+64ft-50ft

Overall

25028

Females

10491

F18-39

10491

20M→21M

20.0 - 21.0 mi

Top 88%
×8stories
+106ft-24ft

Overall

24991

Females

10567

F18-39

10567

21M→35K

21.0 - 21.8 mi

Top 86%
×7stories
+17ft-86ft

Overall

24400

Females

10284

F18-39

10284

35K→23M

21.8 - 23.0 mi

Top 87%
×5stories
+23ft-63ft

Overall

24796

Females

10498

F18-39

10498

23M→24M

23.0 - 24.0 mi

Top 86%
×6stories
+12ft-82ft

Overall

24438

Females

10348

F18-39

10348

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

23868

Females

10112

F18-39

10112

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

22499

Females

9422

F18-39

9422

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

24369

Females

10346

F18-39

10346

Passing Analysis

Category:
Athletes Passed
1372
Passed By
462
Net Change
+910
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27068
5K → 10K70272-202#27068#27270
10K → 15K14378+65#27270#27205
15K → 20K17135+136#27205#27069
20K → Half436+37#27069#27032
Half → 25K13017+113#27032#26919
25K → 30K26611+255#26919#26664
30K → 20M1085+103#26664#26561
20M → 21M8110+71#26561#26490
21M → 35K632+61#26490#26429
35K → 23M747+67#26429#26362
23M → 24M813+78#26362#26284
24M → 40K734+69#26284#26215
40K → 25.2M251+24#26215#26191
25.2M → Finish4411+33#26191#26158
TOTALS1372462+910
📊

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