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BOSTON MARATHON 2025

Brigid Regan

Bib: 25700•F

NY

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
27:11
Rank: #21249
Start → 5K
8:45/mi
27:11 split
10K· 6.21 mi
54:16
Rank: #21076 (+173)
5K → 10K
8:43/mi
27:05 split
15K· 9.32 mi
1:21:22
Rank: #20903 (+173)
10K → 15K
8:43/mi
27:06 split
20K· 12.43 mi
1:48:20
Rank: #20512 (+391)
15K → 20K
8:41/mi
26:58 split
Half· 13.11 mi
1:54:11
Rank: #20460 (+52)
20K → Half
8:34/mi
5:51 split
25K· 15.53 mi
2:15:19
Rank: #20127 (+333)
Half → 25K
8:43/mi
21:08 split
30K· 18.64 mi
2:42:53
Rank: #19527 (+600)
25K → 30K
8:52/mi
27:34 split
20M
2:54:55
Rank: #19262 (+265)
30K → 20M
8:51/mi
12:02 split
21M
3:03:51
Rank: #18935 (+327)
20M → 21M
8:56/mi
8:56 split
35K· 21.75 mi
3:10:21
Rank: #18842 (+93)
21M → 35K
8:41/mi
6:30 split
23M
3:21:34
Rank: #18666 (+176)
35K → 23M
8:58/mi
11:13 split
24M
3:30:23
Rank: #18561 (+105)
23M → 24M
8:49/mi
8:49 split
40K· 24.85 mi
3:38:06
Rank: #18451 (+110)
24M → 40K
9:02/mi
7:43 split
25.2M
3:41:23
Rank: #18394 (+57)
40K → 25.2M
9:31/mi
3:17 split
Finish· 26.22 mi
3:50:06
Rank: #18340 (+54)
25.2M → Finish
8:33/mi
8:43 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:11
Pace8:43 /mi
2nd Half
Distance13.11 mi
Time1:55:55
Pace8:51 /mi
📊Positive Split: 1.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:3127:118:4527:11
8:45
-
10K
6.21 mi12:09:3654:168:4427:05
8:43
-0:02
15K
9.32 mi12:36:421:21:228:4427:06
8:43
0:00
20K
12.43 mi13:03:401:48:208:4326:58
8:41
-0:02
Half
13.11 mi13:09:311:54:118:435:51
8:34
-0:07
25K
15.53 mi13:30:392:15:198:4321:08
8:43
+0:09
30K
18.64 mi13:58:132:42:538:4427:34
8:52
+0:09
20M
20.00 mi14:10:152:54:558:4512:02
8:51
-0:01
21M
21.00 mi14:19:113:03:518:458:56
8:56
+0:05
35K
21.75 mi14:25:413:10:218:456:30
8:41
-0:15
23M
23.00 mi14:36:543:21:348:4611:13
8:58
+0:17
24M
24.00 mi14:45:433:30:238:468:49
8:49
-0:09
40K
24.85 mi14:53:263:38:068:467:43
9:02
+0:13
25.2M
25.20 mi14:56:433:41:238:473:17
9:31
+0:29
Finish
26.22 mi15:05:263:50:068:478:43
8:33
-0:58

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

8:33 /mi

Average Pace

8:47 /mi

Slowest Pace

9:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:46:49

99% of race

Time at Steady Pace

3:17

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:47 /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 mi11:42:3127:118:4527:11
8:45
#21249
10K
6.21 mi12:09:3654:168:4427:05
8:43
#21076
15K
9.32 mi12:36:421:21:228:4427:06
8:43
#20903
20K
12.43 mi13:03:401:48:208:4326:58
8:41
#20512
Half
13.11 mi13:09:311:54:118:435:51
8:34
#20460
25K
15.53 mi13:30:392:15:198:4321:08
8:43
#20127
30K
18.64 mi13:58:132:42:538:4427:34
8:52
#19527
20M
20.00 mi14:10:152:54:558:4512:02
8:51
#19262
21M
21.00 mi14:19:113:03:518:458:56
8:56
#18935
35K
21.75 mi14:25:413:10:218:456:30
8:41
#18842
23M
23.00 mi14:36:543:21:348:4611:13
8:58
#18666
24M
24.00 mi14:45:433:30:238:468:49
8:49
#18561
40K
24.85 mi14:53:263:38:068:467:43
9:02
#18451
25.2M
25.20 mi14:56:433:41:238:473:17
9:31
#18394
Finish
26.22 mi15:05:263:50:068:478:43
8:33
#18340
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi212498212821220609(Top 73%)7777(Top 64%)7777(Top 142%)
10K6.21 mi3.10 mi21076+1738092+1208092+12020970(Top 74%)8000(Top 65%)8000(Top 146%)
15K9.32 mi3.11 mi20903+1737991+1017991+10120609(Top 73%)7777(Top 64%)7777(Top 142%)
20K12.43 mi3.11 mi20512+3917768+2237768+22319325(Top 68%)7093(Top 58%)7093(Top 130%)
Half13.11 mi0.68 mi20460+527741+277741+2719703(Top 69%)7291(Top 60%)7291(Top 133%)
25K15.53 mi2.42 mi20127+3337563+1787563+17818505(Top 65%)6706(Top 55%)6706(Top 123%)
30K18.64 mi3.11 mi19527+6007256+3077256+30717020(Top 60%)6045(Top 49%)6045(Top 111%)
20M20.00 mi1.36 mi19262+2657133+1237133+12316006(Top 56%)5606(Top 46%)5606(Top 103%)
21M21.00 mi1.00 mi18935+3276969+1646969+16413163(Top 46%)4208(Top 34%)4208(Top 77%)
35K21.75 mi0.75 mi18842+936932+376932+3716662(Top 59%)6158(Top 50%)6158(Top 113%)
23M23.00 mi1.25 mi18666+1766864+686864+6816065(Top 57%)5930(Top 48%)5930(Top 108%)
24M24.00 mi1.00 mi18561+1056833+316833+3116447(Top 58%)6183(Top 51%)6183(Top 113%)
40K24.85 mi0.85 mi18451+1106794+396794+3916488(Top 58%)6311(Top 52%)6311(Top 115%)
25.2M25.20 mi0.35 mi18394+576772+226772+2214792(Top 52%)5462(Top 45%)5462(Top 100%)
Finish26.22 mi1.02 mi18340+546767+56767+516607(Top 58%)6365(Top 52%)6365(Top 116%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21stories
+97ft-345ft

Overall

20609

Females

7777

F18-39

7777

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

20970

Females

8000

F18-39

8000

10K→15K

6.2 - 9.3 mi

Top 73%
×3stories
+67ft-78ft

Overall

20609

Females

7777

F18-39

7777

15K→20K

9.3 - 12.4 mi

Top 68%
×5stories
+106ft-86ft

Overall

19325

Females

7093

F18-39

7093

20K→Half

12.4 - 13.1 mi

Top 69%
×2stories
+19ft-37ft

Overall

19703

Females

7291

F18-39

7291

Half→25K

13.1 - 15.5 mi

Top 65%
×4stories
+66ft-88ft

Overall

18505

Females

6706

F18-39

6706

25K→30K

15.5 - 18.6 mi

Top 60%
×9stories
+181ft-148ft

Overall

17020

Females

6045

F18-39

6045

30K→20M

18.6 - 20.0 mi

Top 56%
×5stories
+64ft-50ft

Overall

16006

Females

5606

F18-39

5606

20M→21M

20.0 - 21.0 mi

Top 46%
×8stories
+106ft-24ft

Overall

13163

Females

4208

F18-39

4208

21M→35K

21.0 - 21.8 mi

Top 59%
×7stories
+17ft-86ft

Overall

16662

Females

6158

F18-39

6158

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

16065

Females

5930

F18-39

5930

23M→24M

23.0 - 24.0 mi

Top 58%
×6stories
+12ft-82ft

Overall

16447

Females

6183

F18-39

6183

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16488

Females

6311

F18-39

6311

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

14792

Females

5462

F18-39

5462

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

16607

Females

6365

F18-39

6365

Passing Analysis

Category:
Athletes Passed
3398
Passed By
489
Net Change
+2909
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21249
5K → 10K364191+173#21249#21076
10K → 15K278105+173#21076#20903
15K → 20K41928+391#20903#20512
20K → Half6311+52#20512#20460
Half → 25K36229+333#20460#20127
25K → 30K61313+600#20127#19527
30K → 20M2683+265#19527#19262
20M → 21M3281+327#19262#18935
21M → 35K1018+93#18935#18842
35K → 23M20125+176#18842#18666
23M → 24M12419+105#18666#18561
24M → 40K12616+110#18561#18451
40K → 25.2M592+57#18451#18394
25.2M → Finish9238+54#18394#18340
TOTALS3398489+2909
📊

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