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BOSTON MARATHON 2025

Karol'ann Boivin

Bib: 14137•F

QC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 46%
Gender (Female)
#0 / 12228
Top 31%
Division (F18-39)
#0 / 5469
Top 50%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:02
Rank: #14271
Start → 5K
24:02 | 7:44/mi
10K· 6.21 mi
48:10
Rank: #14340 (-69)
5K → 10K
24:08 | 7:46/mi
15K· 9.32 mi
1:12:26
Rank: #14391 (-51)
10K → 15K
24:16 | 7:49/mi
20K· 12.43 mi
1:37:01
Rank: #14305 (+86)
15K → 20K
24:35 | 7:55/mi
Half· 13.11 mi
1:42:20
Rank: #14288 (+17)
20K → Half
5:19 | 7:48/mi
25K· 15.53 mi
2:01:39
Rank: #14144 (+144)
Half → 25K
19:19 | 7:58/mi
30K· 18.64 mi
2:27:08
Rank: #13819 (+325)
25K → 30K
25:29 | 8:12/mi
20M
2:38:18
Rank: #13638 (+181)
30K → 20M
11:10 | 8:13/mi
21M
2:46:58
Rank: #13493 (+145)
20M → 21M
8:40 | 8:40/mi
35K· 21.75 mi
2:52:46
Rank: #13365 (+128)
21M → 35K
5:48 | 7:45/mi
23M
3:03:12
Rank: #13269 (+96)
35K → 23M
10:26 | 8:20/mi
24M
3:11:17
Rank: #13183 (+86)
23M → 24M
8:05 | 8:05/mi
40K· 24.85 mi
3:18:20
Rank: #13112 (+71)
24M → 40K
7:03 | 8:15/mi
25.2M
3:21:29
Rank: #13105 (+7)
40K → 25.2M
3:09 | 9:08/mi
Finish· 26.22 mi
3:29:45
Rank: #13148 (-43)
25.2M → Finish
8:16 | 8:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:20
Pace7:48 /mi
2nd Half
Distance13.11 mi
Time1:47:25
Pace8:12 /mi
📊Positive Split: 5.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:2024:027:4424:02
7:44
-
10K
6.21 mi11:18:2848:107:4524:08
7:46
+0:02
15K
9.32 mi11:42:441:12:267:4624:16
7:49
+0:03
20K
12.43 mi12:07:191:37:017:4824:35
7:55
+0:06
Half
13.11 mi12:12:381:42:207:485:19
7:48
-0:07
25K
15.53 mi12:31:572:01:397:5019:19
7:58
+0:10
30K
18.64 mi12:57:262:27:087:5425:29
8:12
+0:14
20M
20.00 mi13:08:362:38:187:5511:10
8:13
+0:01
21M
21.00 mi13:17:162:46:587:578:40
8:40
+0:27
35K
21.75 mi13:23:042:52:467:575:48
7:45
-0:55
23M
23.00 mi13:33:303:03:127:5810:26
8:20
+0:35
24M
24.00 mi13:41:353:11:177:588:05
8:05
-0:15
40K
24.85 mi13:48:383:18:207:597:03
8:15
+0:10
25.2M
25.20 mi13:51:473:21:298:003:09
9:08
+0:53
Finish
26.22 mi14:00:033:29:458:008:16
8:07
-1:01

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

7:44 /mi

Average Pace

8:00 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:56

94% of race

Time at Steady Pace

8:40

4% of race

Time at Slower Pace

3:09

2% of race

Average Pace: 8:00 /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 mi10:54:2024:027:4424:02
7:44
#14271
10K
6.21 mi11:18:2848:107:4524:08
7:46
#14340
15K
9.32 mi11:42:441:12:267:4624:16
7:49
#14391
20K
12.43 mi12:07:191:37:017:4824:35
7:55
#14305
Half
13.11 mi12:12:381:42:207:485:19
7:48
#14288
25K
15.53 mi12:31:572:01:397:5019:19
7:58
#14144
30K
18.64 mi12:57:262:27:087:5425:29
8:12
#13819
20M
20.00 mi13:08:362:38:187:5511:10
8:13
#13638
21M
21.00 mi13:17:162:46:587:578:40
8:40
#13493
35K
21.75 mi13:23:042:52:467:575:48
7:45
#13365
23M
23.00 mi13:33:303:03:127:5810:26
8:20
#13269
24M
24.00 mi13:41:353:11:177:588:05
8:05
#13183
40K
24.85 mi13:48:383:18:207:597:03
8:15
#13112
25.2M
25.20 mi13:51:473:21:298:003:09
9:08
#13105
Finish
26.22 mi14:00:033:29:458:008:16
8:07
#13148
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi142714081408114473(Top 51%)4293(Top 35%)4293(Top 78%)
10K6.21 mi3.10 mi14340-694144-634144-6314529(Top 51%)4266(Top 35%)4266(Top 78%)
15K9.32 mi3.11 mi14391-514194-504194-5014473(Top 51%)4293(Top 35%)4293(Top 78%)
20K12.43 mi3.11 mi14305+864177+174177+1714208(Top 50%)4201(Top 34%)4201(Top 77%)
Half13.11 mi0.68 mi14288+174170+74170+714242(Top 50%)4193(Top 34%)4193(Top 77%)
25K15.53 mi2.42 mi14144+1444124+464124+4613637(Top 48%)4023(Top 33%)4023(Top 74%)
30K18.64 mi3.11 mi13819+3254007+1174007+11712849(Top 45%)3746(Top 31%)3746(Top 68%)
20M20.00 mi1.36 mi13638+1813928+793928+7911939(Top 42%)3415(Top 28%)3415(Top 62%)
21M21.00 mi1.00 mi13493+1453884+443884+4411512(Top 41%)3367(Top 28%)3367(Top 62%)
35K21.75 mi0.75 mi13365+1283835+493835+4910538(Top 37%)2889(Top 24%)2889(Top 53%)
23M23.00 mi1.25 mi13269+963823+123823+1212259(Top 43%)3884(Top 32%)3884(Top 71%)
24M24.00 mi1.00 mi13183+863808+153808+1511824(Top 42%)3719(Top 30%)3719(Top 68%)
40K24.85 mi0.85 mi13112+713791+173791+1711865(Top 42%)3852(Top 32%)3852(Top 70%)
25.2M25.20 mi0.35 mi13105+73800-93800-912610(Top 44%)4289(Top 35%)4289(Top 78%)
Finish26.22 mi1.02 mi13148-433846-463846-4613691(Top 48%)4789(Top 39%)4789(Top 88%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21stories
+97ft-345ft

Overall

14473

Females

4293

F18-39

4293

5K→10K

3.1 - 6.2 mi

Top 51%
×5stories
+79ft-138ft

Overall

14529

Females

4266

F18-39

4266

10K→15K

6.2 - 9.3 mi

Top 51%
×3stories
+67ft-78ft

Overall

14473

Females

4293

F18-39

4293

15K→20K

9.3 - 12.4 mi

Top 50%
×5stories
+106ft-86ft

Overall

14208

Females

4201

F18-39

4201

20K→Half

12.4 - 13.1 mi

Top 50%
×2stories
+19ft-37ft

Overall

14242

Females

4193

F18-39

4193

Half→25K

13.1 - 15.5 mi

Top 48%
×4stories
+66ft-88ft

Overall

13637

Females

4023

F18-39

4023

25K→30K

15.5 - 18.6 mi

Top 45%
×9stories
+181ft-148ft

Overall

12849

Females

3746

F18-39

3746

30K→20M

18.6 - 20.0 mi

Top 42%
×5stories
+64ft-50ft

Overall

11939

Females

3415

F18-39

3415

20M→21M

20.0 - 21.0 mi

Top 41%
×8stories
+106ft-24ft

Overall

11512

Females

3367

F18-39

3367

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

10538

Females

2889

F18-39

2889

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

12259

Females

3884

F18-39

3884

23M→24M

23.0 - 24.0 mi

Top 42%
×6stories
+12ft-82ft

Overall

11824

Females

3719

F18-39

3719

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11865

Females

3852

F18-39

3852

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

12610

Females

4289

F18-39

4289

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

13691

Females

4789

F18-39

4789

Passing Analysis

Category:
Athletes Passed
2346
Passed By
1223
Net Change
+1123
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14271
5K → 10K254323-69#14271#14340
10K → 15K183234-51#14340#14391
15K → 20K250164+86#14391#14305
20K → Half4225+17#14305#14288
Half → 25K21975+144#14288#14144
25K → 30K42297+325#14144#13819
30K → 20M21231+181#13819#13638
20M → 21M17934+145#13638#13493
21M → 35K1379+128#13493#13365
35K → 23M14751+96#13365#13269
23M → 24M11630+86#13269#13183
24M → 40K10534+71#13183#13112
40K → 25.2M3528+7#13112#13105
25.2M → Finish4588-43#13105#13148
TOTALS23461223+1123
📊

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