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BOSTON MARATHON 2025

Regina Brock

Bib: 8145•F

IN

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 20%
Gender (Female)
#0 / 12228
Top 5%
Division (F18-39)
#0 / 5469
Top 9%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:54
Rank: #8219
Start → 5K
21:54 | 7:03/mi
10K· 6.21 mi
43:39
Rank: #8059 (+160)
5K → 10K
21:45 | 7:00/mi
15K· 9.32 mi
1:05:17
Rank: #7784 (+275)
10K → 15K
21:38 | 6:58/mi
20K· 12.43 mi
1:26:47
Rank: #7384 (+400)
15K → 20K
21:30 | 6:55/mi
Half· 13.11 mi
1:31:22
Rank: #7288 (+96)
20K → Half
4:35 | 6:43/mi
25K· 15.53 mi
1:48:14
Rank: #7051 (+237)
Half → 25K
16:52 | 6:57/mi
30K· 18.64 mi
2:10:23
Rank: #6622 (+429)
25K → 30K
22:09 | 7:08/mi
20M
2:20:12
Rank: #6450 (+172)
30K → 20M
9:49 | 7:13/mi
21M
2:27:46
Rank: #6307 (+143)
20M → 21M
7:34 | 7:34/mi
35K· 21.75 mi
2:32:53
Rank: #6208 (+99)
21M → 35K
5:07 | 6:50/mi
23M
2:41:53
Rank: #6031 (+177)
35K → 23M
9:00 | 7:11/mi
24M
2:48:51
Rank: #5927 (+104)
23M → 24M
6:58 | 6:58/mi
40K· 24.85 mi
2:54:57
Rank: #5813 (+114)
24M → 40K
6:06 | 7:08/mi
25.2M
2:57:38
Rank: #5752 (+61)
40K → 25.2M
2:41 | 7:47/mi
Finish· 26.22 mi
3:04:43
Rank: #5675 (+77)
25.2M → Finish
7:05 | 6:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:22
Pace6:58 /mi
2nd Half
Distance13.11 mi
Time1:33:21
Pace7:07 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:1321:547:0321:54
7:03
-
10K
6.21 mi10:51:5843:397:0121:45
7:00
-0:03
15K
9.32 mi11:13:361:05:177:0021:38
6:58
-0:02
20K
12.43 mi11:35:061:26:476:5921:30
6:55
-0:03
Half
13.11 mi11:39:411:31:226:584:35
6:43
-0:12
25K
15.53 mi11:56:331:48:146:5816:52
6:57
+0:14
30K
18.64 mi12:18:422:10:237:0022:09
7:08
+0:11
20M
20.00 mi12:28:312:20:127:019:49
7:13
+0:05
21M
21.00 mi12:36:052:27:467:027:34
7:34
+0:21
35K
21.75 mi12:41:122:32:537:025:07
6:50
-0:44
23M
23.00 mi12:50:122:41:537:029:00
7:11
+0:21
24M
24.00 mi12:57:102:48:517:026:58
6:58
-0:13
40K
24.85 mi13:03:162:54:577:026:06
7:08
+0:10
25.2M
25.20 mi13:05:572:57:387:032:41
7:47
+0:39
Finish
26.22 mi13:13:023:04:437:037:05
6:57
-0:50

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

6:43 /mi

Average Pace

7:03 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:54:28

94% of race

Time at Steady Pace

10:15

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:03 /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 mi10:30:1321:547:0321:54
7:03
#8219
10K
6.21 mi10:51:5843:397:0121:45
7:00
#8059
15K
9.32 mi11:13:361:05:177:0021:38
6:58
#7784
20K
12.43 mi11:35:061:26:476:5921:30
6:55
#7384
Half
13.11 mi11:39:411:31:226:584:35
6:43
#7288
25K
15.53 mi11:56:331:48:146:5816:52
6:57
#7051
30K
18.64 mi12:18:422:10:237:0022:09
7:08
#6622
20M
20.00 mi12:28:312:20:127:019:49
7:13
#6450
21M
21.00 mi12:36:052:27:467:027:34
7:34
#6307
35K
21.75 mi12:41:122:32:537:025:07
6:50
#6208
23M
23.00 mi12:50:122:41:537:029:00
7:11
#6031
24M
24.00 mi12:57:102:48:517:026:58
6:58
#5927
40K
24.85 mi13:03:162:54:577:026:06
7:08
#5813
25.2M
25.20 mi13:05:572:57:387:032:41
7:47
#5752
Finish
26.22 mi13:13:023:04:437:037:05
6:57
#5675
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8219106110617399(Top 26%)836(Top 7%)836(Top 15%)
10K6.21 mi3.10 mi8059+1601015+461015+467930(Top 28%)973(Top 8%)973(Top 18%)
15K9.32 mi3.11 mi7784+275926+89926+897399(Top 26%)836(Top 7%)836(Top 15%)
20K12.43 mi3.11 mi7384+400819+107819+1076361(Top 22%)632(Top 5%)632(Top 12%)
Half13.11 mi0.68 mi7288+96791+28791+285532(Top 19%)457(Top 4%)457(Top 8%)
25K15.53 mi2.42 mi7051+237741+50741+506044(Top 21%)596(Top 5%)596(Top 11%)
30K18.64 mi3.11 mi6622+429680+61680+615504(Top 19%)552(Top 5%)552(Top 10%)
20M20.00 mi1.36 mi6450+172661+19661+195360(Top 19%)600(Top 5%)600(Top 11%)
21M21.00 mi1.00 mi6307+143644+17644+174963(Top 17%)603(Top 5%)603(Top 11%)
35K21.75 mi0.75 mi6208+99634+10634+104415(Top 16%)474(Top 4%)474(Top 9%)
23M23.00 mi1.25 mi6031+177609+25609+254818(Top 17%)616(Top 5%)616(Top 11%)
24M24.00 mi1.00 mi5927+104608+1608+14468(Top 16%)574(Top 5%)574(Top 10%)
40K24.85 mi0.85 mi5813+114597+11597+114707(Top 17%)690(Top 6%)690(Top 13%)
25.2M25.20 mi0.35 mi5752+61593+4593+44842(Top 17%)809(Top 7%)809(Top 15%)
Finish26.22 mi1.02 mi5675+77586+7586+75430(Top 19%)1022(Top 8%)1022(Top 19%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21stories
+97ft-345ft

Overall

7399

Females

836

F18-39

836

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7930

Females

973

F18-39

973

10K→15K

6.2 - 9.3 mi

Top 26%
×3stories
+67ft-78ft

Overall

7399

Females

836

F18-39

836

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

6361

Females

632

F18-39

632

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5532

Females

457

F18-39

457

Half→25K

13.1 - 15.5 mi

Top 21%
×4stories
+66ft-88ft

Overall

6044

Females

596

F18-39

596

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5504

Females

552

F18-39

552

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5360

Females

600

F18-39

600

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4963

Females

603

F18-39

603

21M→35K

21.0 - 21.8 mi

Top 16%
×7stories
+17ft-86ft

Overall

4415

Females

474

F18-39

474

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4818

Females

616

F18-39

616

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4468

Females

574

F18-39

574

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4707

Females

690

F18-39

690

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4842

Females

809

F18-39

809

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5430

Females

1022

F18-39

1022

Passing Analysis

Category:
Athletes Passed
2839
Passed By
295
Net Change
+2544
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8219
5K → 10K303143+160#8219#8059
10K → 15K30833+275#8059#7784
15K → 20K4055+400#7784#7384
20K → Half971+96#7384#7288
Half → 25K24710+237#7288#7051
25K → 30K44819+429#7051#6622
30K → 20M18311+172#6622#6450
20M → 21M15512+143#6450#6307
21M → 35K1023+99#6307#6208
35K → 23M1836+177#6208#6031
23M → 24M12016+104#6031#5927
24M → 40K12410+114#5927#5813
40K → 25.2M654+61#5813#5752
25.2M → Finish9922+77#5752#5675
TOTALS2839295+2544
📊

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