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BOSTON MARATHON 2025

Darby Brunner

Bib: 12164•F

GA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 37%
Gender (Female)
#0 / 12228
Top 20%
Division (F18-39)
#0 / 5469
Top 34%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:44/mi
24:02
↑ 97↓ 3451.5%
10K· 6.21 mi
7:49/mi
48:19
↑ 79↓ 1380.4%
15K· 9.32 mi
7:44/mi
1:12:22
↑ 67↓ 78
20K· 12.43 mi
7:43/mi
1:36:21
↑ 106↓ 860.1%
Half· 13.11 mi
7:29/mi
1:41:27
↑ 19↓ 370.5%
25K· 15.53 mi
7:39/mi
2:00:01
↑ 66↓ 880.2%
30K· 18.64 mi
7:31/mi
2:23:23
↑ 181↓ 1480.2%
20M
7:36/mi
2:33:42
↑ 64↓ 500.2%
21M
7:43/mi
2:41:25
↑ 106↓ 241.6%
35K· 21.75 mi
7:26/mi
2:46:59
↑ 17↓ 861.7%
23M
7:40/mi
2:56:35
↑ 23↓ 630.6%
24M
7:34/mi
3:04:09
↓ 821.3%
40K· 24.85 mi
7:49/mi
3:10:50
↓ 200.3%
25.2M
8:16/mi
3:13:41
↑ 13↓ 160.2%
Finish· 26.22 mi
6:59/mi
3:20:48
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:41:27
Pace7:44 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:39:21
Pace7:35 /mi
📊Negative Split: 2.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:2124:027:4424:02
7:44
-
10K
6.21 mi11:15:3848:197:4724:17
7:49
+0:05
15K
9.32 mi11:39:411:12:227:4624:03
7:44
-0:05
20K
12.43 mi12:03:401:36:217:4523:59
7:43
-0:01
Half
13.11 mi12:08:461:41:277:445:06
7:29
-0:14
25K
15.53 mi12:27:202:00:017:4418:34
7:39
+0:10
30K
18.64 mi12:50:422:23:237:4223:22
7:31
-0:08
20M
20.00 mi13:01:012:33:427:4110:19
7:36
+0:05
21M
21.00 mi13:08:442:41:257:417:43
7:43
+0:07
35K
21.75 mi13:14:182:46:597:415:34
7:26
-0:17
23M
23.00 mi13:23:542:56:357:419:36
7:40
+0:14
24M
24.00 mi13:31:283:04:097:407:34
7:34
-0:06
40K
24.85 mi13:38:093:10:507:416:41
7:49
+0:15
25.2M
25.20 mi13:41:003:13:417:412:51
8:16
+0:27
Finish
26.22 mi13:48:073:20:487:407:07
6:59
-1:17

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

6:59 /mi

Average Pace

7:40 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:27:12

43% of race

Time at Steady Pace

1:50:45

55% of race

Time at Slower Pace

2:51

1% of race

Average Pace: 7:39 /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 mi10:51:2124:027:4424:02
7:44
#14259
10K
6.21 mi11:15:3848:197:4724:17
7:49
#14548
15K
9.32 mi11:39:411:12:227:4624:03
7:44
#14326
20K
12.43 mi12:03:401:36:217:4523:59
7:43
#13835
Half
13.11 mi12:08:461:41:277:445:06
7:29
#13705
25K
15.53 mi12:27:202:00:017:4418:34
7:39
#13239
30K
18.64 mi12:50:422:23:237:4223:22
7:31
#12194
20M
20.00 mi13:01:012:33:427:4110:19
7:36
#11766
21M
21.00 mi13:08:442:41:257:417:43
7:43
#11344
35K
21.75 mi13:14:182:46:597:415:34
7:26
#11221
23M
23.00 mi13:23:542:56:357:419:36
7:40
#10966
24M
24.00 mi13:31:283:04:097:407:34
7:34
#10795
40K
24.85 mi13:38:093:10:507:416:41
7:49
#10697
25.2M
25.20 mi13:41:003:13:417:412:51
8:16
#10620
Finish
26.22 mi13:48:073:20:487:407:07
6:59
#10381
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi142594069406913863(Top 49%)3926(Top 32%)3926(Top 72%)
10K6.21 mi3.10 mi14548-2894263-1944263-19414966(Top 53%)4511(Top 37%)4511(Top 82%)
15K9.32 mi3.11 mi14326+2224151+1124151+11213863(Top 49%)3926(Top 32%)3926(Top 72%)
20K12.43 mi3.11 mi13835+4913918+2333918+23312594(Top 44%)3318(Top 27%)3318(Top 61%)
Half13.11 mi0.68 mi13705+1303854+643854+6411533(Top 41%)2692(Top 22%)2692(Top 49%)
25K15.53 mi2.42 mi13239+4663620+2343620+23411221(Top 40%)2697(Top 22%)2697(Top 49%)
30K18.64 mi3.11 mi12194+10453093+5273093+5277913(Top 28%)1367(Top 11%)1367(Top 25%)
20M20.00 mi1.36 mi11766+4282906+1872906+1877674(Top 27%)1420(Top 12%)1420(Top 26%)
21M21.00 mi1.00 mi11344+4222730+1762730+1765788(Top 20%)863(Top 7%)863(Top 16%)
35K21.75 mi0.75 mi11221+1232689+412689+418274(Top 29%)1802(Top 15%)1802(Top 33%)
23M23.00 mi1.25 mi10966+2552602+872602+877732(Top 27%)1710(Top 14%)1710(Top 31%)
24M24.00 mi1.00 mi10795+1712549+532549+538204(Top 29%)1958(Top 16%)1958(Top 36%)
40K24.85 mi0.85 mi10697+982525+242525+248913(Top 31%)2410(Top 20%)2410(Top 44%)
25.2M25.20 mi0.35 mi10620+772494+312494+317538(Top 27%)1878(Top 15%)1878(Top 34%)
Finish26.22 mi1.02 mi10381+2392408+862408+865670(Top 20%)1136(Top 9%)1136(Top 21%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21story building
+97ft-345ft

Overall

13863

Females

3926

F18-39

3926

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

14966

Females

4511

F18-39

4511

10K→15K

6.2 - 9.3 mi

Top 49%
×3story building
+67ft-78ft

Overall

13863

Females

3926

F18-39

3926

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

12594

Females

3318

F18-39

3318

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

11533

Females

2692

F18-39

2692

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

11221

Females

2697

F18-39

2697

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

7913

Females

1367

F18-39

1367

30K→20M

18.6 - 20.0 mi

Top 27%
×5story building
+64ft-50ft

Overall

7674

Females

1420

F18-39

1420

20M→21M

20.0 - 21.0 mi

Top 20%
×8story building
+106ft-24ft

Overall

5788

Females

863

F18-39

863

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

8274

Females

1802

F18-39

1802

35K→23M

21.8 - 23.0 mi

Top 27%
×5story building
+23ft-63ft

Overall

7732

Females

1710

F18-39

1710

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

8204

Females

1958

F18-39

1958

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8913

Females

2410

F18-39

2410

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7538

Females

1878

F18-39

1878

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2story building
+22ft-21ft

Overall

5670

Females

1136

F18-39

1136

Passing Analysis

Category:
Athletes Passed
4532
Passed By
654
Net Change
+3878
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14259
5K → 10K183472-289#14259#14548
10K → 15K31290+222#14548#14326
15K → 20K51423+491#14326#13835
20K → Half1300+130#13835#13705
Half → 25K4726+466#13705#13239
25K → 30K10450+1045#13239#12194
30K → 20M4280+428#12194#11766
20M → 21M4220+422#11766#11344
21M → 35K1285+123#11344#11221
35K → 23M26712+255#11221#10966
23M → 24M1809+171#10966#10795
24M → 40K12022+98#10795#10697
40K → 25.2M869+77#10697#10620
25.2M → Finish2456+239#10620#10381
TOTALS4532654+3878
📊

Passing Visuals

Category:
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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