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BOSTON MARATHON 2025

Bailey Conti

Bib: 17747•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 48%
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
7:27/mi
23:09
↑ 97↓ 3451.5%
10K· 6.21 mi
7:32/mi
46:34
↑ 79↓ 1380.4%
15K· 9.32 mi
7:37/mi
1:10:15
↑ 67↓ 78
20K· 12.43 mi
7:40/mi
1:34:05
↑ 106↓ 860.1%
Half· 13.11 mi
7:42/mi
1:39:20
↑ 19↓ 370.5%
25K· 15.53 mi
7:51/mi
1:58:21
↑ 66↓ 880.2%
30K· 18.64 mi
9:25/mi
2:27:35
↑ 181↓ 1480.2%
20M
10:13/mi
2:41:28
↑ 64↓ 500.2%
21M
11:09/mi
2:52:37
↑ 106↓ 241.6%
35K· 21.75 mi
8:27/mi
2:58:56
↑ 17↓ 861.7%
23M
10:04/mi
3:11:32
↑ 23↓ 630.6%
24M
9:47/mi
3:21:19
↓ 821.3%
40K· 24.85 mi
10:47/mi
3:30:32
↓ 200.3%
25.2M
11:56/mi
3:34:39
↑ 13↓ 160.2%
Finish· 26.22 mi
8:29/mi
3:43:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:20
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time2:03:58
Pace9:27 /mi
📊Positive Split: 24.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:1423:097:2723:09
7:27
-
10K
6.21 mi11:36:3946:347:3023:25
7:32
+0:05
15K
9.32 mi12:00:201:10:157:3223:41
7:37
+0:05
20K
12.43 mi12:24:101:34:057:3423:50
7:40
+0:03
Half
13.11 mi12:29:251:39:207:355:15
7:42
+0:02
25K
15.53 mi12:48:261:58:217:3719:01
7:51
+0:09
30K
18.64 mi13:17:402:27:357:5529:14
9:25
+1:34
20M
20.00 mi13:31:332:41:288:0413:53
10:13
+0:48
21M
21.00 mi13:42:422:52:378:1311:09
11:09
+0:56
35K
21.75 mi13:49:012:58:568:146:19
8:27
-2:42
23M
23.00 mi14:01:373:11:328:2012:36
10:04
+1:37
24M
24.00 mi14:11:243:21:198:239:47
9:47
-0:17
40K
24.85 mi14:20:373:30:328:289:13
10:47
+1:00
25.2M
25.20 mi14:24:443:34:398:314:07
11:56
+1:09
Finish
26.22 mi14:33:233:43:188:318:39
8:29
-3:27

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

7:27 /mi

Average Pace

8:31 /mi

Slowest Pace

11:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:20

44% of race

Time at Steady Pace

33:59

15% of race

Time at Slower Pace

1:29:59

40% of race

Average Pace: 8:31 /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 mi11:13:1423:097:2723:09
7:27
#11825
10K
6.21 mi11:36:3946:347:3023:25
7:32
#12080
15K
9.32 mi12:00:201:10:157:3223:41
7:37
#12306
20K
12.43 mi12:24:101:34:057:3423:50
7:40
#12257
Half
13.11 mi12:29:251:39:207:355:15
7:42
#12313
25K
15.53 mi12:48:261:58:217:3719:01
7:51
#12356
30K
18.64 mi13:17:402:27:357:5529:14
9:25
#14020
20M
20.00 mi13:31:332:41:288:0413:53
10:13
#14930
21M
21.00 mi13:42:422:52:378:1311:09
11:09
#15535
35K
21.75 mi13:49:012:58:568:146:19
8:27
#15526
23M
23.00 mi14:01:373:11:328:2012:36
10:04
#15872
24M
24.00 mi14:11:243:21:198:239:47
9:47
#16130
40K
24.85 mi14:20:373:30:328:289:13
10:47
#16549
25.2M
25.20 mi14:24:443:34:398:314:07
11:56
#16732
Finish
26.22 mi14:33:233:43:188:318:39
8:29
#16699
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi118252706270612828(Top 45%)3353(Top 27%)3353(Top 61%)
10K6.21 mi3.10 mi12080-2552856-1502856-15012463(Top 44%)3076(Top 25%)3076(Top 56%)
15K9.32 mi3.11 mi12306-2263006-1503006-15012828(Top 45%)3353(Top 27%)3353(Top 61%)
20K12.43 mi3.11 mi12257+493012-63012-612174(Top 43%)3098(Top 25%)3098(Top 57%)
Half13.11 mi0.68 mi12313-563045-333045-3313456(Top 47%)3767(Top 31%)3767(Top 69%)
25K15.53 mi2.42 mi12356-433109-643109-6412724(Top 45%)3521(Top 29%)3521(Top 64%)
30K18.64 mi3.11 mi14020-16644116-10074116-100719571(Top 69%)7430(Top 61%)7430(Top 136%)
20M20.00 mi1.36 mi14930-9104656-5404656-54021617(Top 76%)8689(Top 71%)8689(Top 159%)
21M21.00 mi1.00 mi15535-6055037-3815037-38121768(Top 77%)8840(Top 72%)8840(Top 162%)
35K21.75 mi0.75 mi15526+95047-105047-1015164(Top 53%)5326(Top 44%)5326(Top 97%)
23M23.00 mi1.25 mi15872-3465293-2465293-24620693(Top 73%)8399(Top 69%)8399(Top 154%)
24M24.00 mi1.00 mi16130-2585452-1595452-15920676(Top 73%)8429(Top 69%)8429(Top 154%)
40K24.85 mi0.85 mi16549-4195717-2655717-26522643(Top 80%)9520(Top 78%)9520(Top 174%)
25.2M25.20 mi0.35 mi16732-1835846-1295846-12923105(Top 81%)9703(Top 79%)9703(Top 177%)
Finish26.22 mi1.02 mi16699+335848-25848-216169(Top 57%)6113(Top 50%)6113(Top 112%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

12828

Females

3353

F18-39

3353

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

12463

Females

3076

F18-39

3076

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

12828

Females

3353

F18-39

3353

15K→20K

9.3 - 12.4 mi

Top 43%
×5story building
+106ft-86ft

Overall

12174

Females

3098

F18-39

3098

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

13456

Females

3767

F18-39

3767

Half→25K

13.1 - 15.5 mi

Top 45%
×4story building
+66ft-88ft

Overall

12724

Females

3521

F18-39

3521

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

19571

Females

7430

F18-39

7430

30K→20M

18.6 - 20.0 mi

Top 76%
×5story building
+64ft-50ft

Overall

21617

Females

8689

F18-39

8689

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

21768

Females

8840

F18-39

8840

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

15164

Females

5326

F18-39

5326

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

20693

Females

8399

F18-39

8399

23M→24M

23.0 - 24.0 mi

Top 73%
×6story building
+12ft-82ft

Overall

20676

Females

8429

F18-39

8429

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

22643

Females

9520

F18-39

9520

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

23105

Females

9703

F18-39

9703

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

16169

Females

6113

F18-39

6113

Passing Analysis

Category:
Athletes Passed
941
Passed By
5815
Net Change
-4874
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11825
5K → 10K156411-255#11825#12080
10K → 15K113339-226#12080#12306
15K → 20K206157+49#12306#12257
20K → Half1268-56#12257#12313
Half → 25K143186-43#12313#12356
25K → 30K351699-1664#12356#14020
30K → 20M19929-910#14020#14930
20M → 21M27632-605#14930#15535
21M → 35K5849+9#15535#15526
35K → 23M47393-346#15526#15872
23M → 24M20278-258#15872#16130
24M → 40K12431-419#16130#16549
40K → 25.2M5188-183#16549#16732
25.2M → Finish8855+33#16732#16699
TOTALS9415815-4874
📊

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