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BOSTON MARATHON 2025

Aubrey Bailey

Bib: 19569•F

IL

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 47%
Gender (Female)
#0 / 12228
Top 32%
Division (F18-39)
#0 / 5469
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
8:09/mi
25:19
↑ 97↓ 3451.5%
10K· 6.21 mi
8:07/mi
50:33
↑ 79↓ 1380.4%
15K· 9.32 mi
8:09/mi
1:15:52
↑ 67↓ 78
20K· 12.43 mi
7:59/mi
1:40:41
↑ 106↓ 860.1%
Half· 13.11 mi
7:46/mi
1:45:59
↑ 19↓ 370.5%
25K· 15.53 mi
8:00/mi
2:05:22
↑ 66↓ 880.2%
30K· 18.64 mi
8:06/mi
2:30:33
↑ 181↓ 1480.2%
20M
8:08/mi
2:41:36
↑ 64↓ 500.2%
21M
8:16/mi
2:49:52
↑ 106↓ 241.6%
35K· 21.75 mi
7:51/mi
2:55:44
↑ 17↓ 861.7%
23M
8:03/mi
3:05:49
↑ 23↓ 630.6%
24M
7:53/mi
3:13:42
↓ 821.3%
40K· 24.85 mi
7:54/mi
3:20:27
↓ 200.3%
25.2M
8:07/mi
3:23:15
↑ 13↓ 160.2%
Finish· 26.22 mi
7:07/mi
3:30:30
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:45:59
Pace8:05 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:44:31
Pace7:58 /mi
📊Negative Split: 1.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:4125:198:0925:19
8:09
-
10K
6.21 mi11:45:5550:338:0825:14
8:07
-0:02
15K
9.32 mi12:11:141:15:528:0825:19
8:09
+0:02
20K
12.43 mi12:36:031:40:418:0624:49
7:59
-0:10
Half
13.11 mi12:41:211:45:598:055:18
7:46
-0:13
25K
15.53 mi13:00:442:05:228:0419:23
8:00
+0:14
30K
18.64 mi13:25:552:30:338:0525:11
8:06
+0:06
20M
20.00 mi13:36:582:41:368:0511:03
8:08
+0:02
21M
21.00 mi13:45:142:49:528:058:16
8:16
+0:08
35K
21.75 mi13:51:062:55:448:055:52
7:51
-0:25
23M
23.00 mi14:01:113:05:498:0510:05
8:03
+0:12
24M
24.00 mi14:09:043:13:428:047:53
7:53
-0:10
40K
24.85 mi14:15:493:20:278:046:45
7:54
+0:01
25.2M
25.20 mi14:18:373:23:158:042:48
8:07
+0:13
Finish
26.22 mi14:25:523:30:308:027:15
7:07
-1:00

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

7:07 /mi

Average Pace

8:02 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

12:33

6% of race

Time at Steady Pace

3:17:57

94% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:02 /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 mi11:20:4125:198:0925:19
8:09
#17723
10K
6.21 mi11:45:5550:338:0825:14
8:07
#17522
15K
9.32 mi12:11:141:15:528:0825:19
8:09
#17354
20K
12.43 mi12:36:031:40:418:0624:49
7:59
#16691
Half
13.11 mi12:41:211:45:598:055:18
7:46
#16563
25K
15.53 mi13:00:442:05:228:0419:23
8:00
#16097
30K
18.64 mi13:25:552:30:338:0525:11
8:06
#15331
20M
20.00 mi13:36:582:41:368:0511:03
8:08
#14982
21M
21.00 mi13:45:142:49:528:058:16
8:16
#14593
35K
21.75 mi13:51:062:55:448:055:52
7:51
#14439
23M
23.00 mi14:01:113:05:498:0510:05
8:03
#14172
24M
24.00 mi14:09:043:13:428:047:53
7:53
#13977
40K
24.85 mi14:15:493:20:278:046:45
7:54
#13753
25.2M
25.20 mi14:18:373:23:158:042:48
8:07
#13626
Finish
26.22 mi14:25:523:30:308:027:15
7:07
#13339
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi177236166616617073(Top 60%)5769(Top 47%)5769(Top 105%)
10K6.21 mi3.10 mi17522+2016048+1186048+11817363(Top 61%)5911(Top 48%)5911(Top 108%)
15K9.32 mi3.11 mi17354+1685923+1255923+12517073(Top 60%)5769(Top 47%)5769(Top 105%)
20K12.43 mi3.11 mi16691+6635547+3765547+37614840(Top 52%)4553(Top 37%)4553(Top 83%)
Half13.11 mi0.68 mi16563+1285476+715476+7114042(Top 49%)4075(Top 33%)4075(Top 75%)
25K15.53 mi2.42 mi16097+4665218+2585218+25813850(Top 49%)4130(Top 34%)4130(Top 76%)
30K18.64 mi3.11 mi15331+7664842+3764842+37612157(Top 43%)3371(Top 28%)3371(Top 62%)
20M20.00 mi1.36 mi14982+3494688+1544688+15411381(Top 40%)3135(Top 26%)3135(Top 57%)
21M21.00 mi1.00 mi14593+3894496+1924496+1929060(Top 32%)2203(Top 18%)2203(Top 40%)
35K21.75 mi0.75 mi14439+1544416+804416+8011191(Top 39%)3217(Top 26%)3217(Top 59%)
23M23.00 mi1.25 mi14172+2674324+924324+9210460(Top 37%)2983(Top 24%)2983(Top 55%)
24M24.00 mi1.00 mi13977+1954249+754249+7510478(Top 37%)3044(Top 25%)3044(Top 56%)
40K24.85 mi0.85 mi13753+2244154+954154+959490(Top 33%)2691(Top 22%)2691(Top 49%)
25.2M25.20 mi0.35 mi13626+1274086+684086+686718(Top 24%)1546(Top 13%)1546(Top 28%)
Finish26.22 mi1.02 mi13339+2873946+1403946+1406520(Top 23%)1463(Top 12%)1463(Top 27%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21story building
+97ft-345ft

Overall

17073

Females

5769

F18-39

5769

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

17363

Females

5911

F18-39

5911

10K→15K

6.2 - 9.3 mi

Top 60%
×3story building
+67ft-78ft

Overall

17073

Females

5769

F18-39

5769

15K→20K

9.3 - 12.4 mi

Top 52%
×5story building
+106ft-86ft

Overall

14840

Females

4553

F18-39

4553

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

14042

Females

4075

F18-39

4075

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13850

Females

4130

F18-39

4130

25K→30K

15.5 - 18.6 mi

Top 43%
×9story building
+181ft-148ft

Overall

12157

Females

3371

F18-39

3371

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

11381

Females

3135

F18-39

3135

20M→21M

20.0 - 21.0 mi

Top 32%
×8story building
+106ft-24ft

Overall

9060

Females

2203

F18-39

2203

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

11191

Females

3217

F18-39

3217

35K→23M

21.8 - 23.0 mi

Top 37%
×5story building
+23ft-63ft

Overall

10460

Females

2983

F18-39

2983

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

10478

Females

3044

F18-39

3044

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9490

Females

2691

F18-39

2691

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6718

Females

1546

F18-39

1546

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2story building
+22ft-21ft

Overall

6520

Females

1463

F18-39

1463

Passing Analysis

Category:
Athletes Passed
4765
Passed By
381
Net Change
+4384
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17723
5K → 10K395194+201#17723#17522
10K → 15K296128+168#17522#17354
15K → 20K6685+663#17354#16691
20K → Half1291+128#16691#16563
Half → 25K4759+466#16563#16097
25K → 30K7704+766#16097#15331
30K → 20M3556+349#15331#14982
20M → 21M3901+389#14982#14593
21M → 35K1617+154#14593#14439
35K → 23M2769+267#14439#14172
23M → 24M2027+195#14172#13977
24M → 40K2328+224#13977#13753
40K → 25.2M1292+127#13753#13626
25.2M → Finish2870+287#13626#13339
TOTALS4765381+4384
📊

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