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BOSTON MARATHON 2025

Hayley Collins

Bib: 1450•F

CT

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 7%
Gender (Female)
#0 / 12228
Top 0.8%
Division (F18-39)
#0 / 5469
Top 1%
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
5:58/mi
18:32
↑ 97↓ 3451.5%
10K· 6.21 mi
5:54/mi
36:52
↑ 79↓ 1380.4%
15K· 9.32 mi
5:56/mi
55:17
↑ 67↓ 78
20K· 12.43 mi
6:03/mi
1:14:06
↑ 106↓ 860.1%
Half· 13.11 mi
6:02/mi
1:18:13
↑ 19↓ 370.5%
25K· 15.53 mi
6:14/mi
1:33:19
↑ 66↓ 880.2%
30K· 18.64 mi
6:41/mi
1:54:04
↑ 181↓ 1480.2%
20M
6:58/mi
2:03:32
↑ 64↓ 500.2%
21M
7:29/mi
2:11:01
↑ 106↓ 241.6%
35K· 21.75 mi
7:01/mi
2:16:16
↑ 17↓ 861.7%
23M
7:10/mi
2:25:15
↑ 23↓ 630.6%
24M
7:03/mi
2:32:18
↓ 821.3%
40K· 24.85 mi
7:12/mi
2:38:27
↓ 200.3%
25.2M
7:41/mi
2:41:06
↑ 13↓ 160.2%
Finish· 26.22 mi
6:50/mi
2:48:04
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:18:13
Pace5:58 /mi
2nd Half
Distance13.11 mi
Time1:29:51
Pace6:51 /mi
📊Positive Split: 14.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:0818:325:5818:32
5:58
-
10K
6.21 mi10:37:2836:525:5618:20
5:54
-0:04
15K
9.32 mi10:55:5355:175:5618:25
5:56
+0:02
20K
12.43 mi11:14:421:14:065:5818:49
6:03
+0:07
Half
13.11 mi11:18:491:18:135:584:07
6:02
-0:01
25K
15.53 mi11:33:551:33:196:0015:06
6:14
+0:12
30K
18.64 mi11:54:401:54:046:0720:45
6:41
+0:27
20M
20.00 mi12:04:082:03:326:119:28
6:58
+0:17
21M
21.00 mi12:11:372:11:016:147:29
7:29
+0:31
35K
21.75 mi12:16:522:16:166:165:15
7:01
-0:28
23M
23.00 mi12:25:512:25:156:198:59
7:10
+0:09
24M
24.00 mi12:32:542:32:186:217:03
7:03
-0:07
40K
24.85 mi12:39:032:38:276:236:09
7:12
+0:09
25.2M
25.20 mi12:41:422:41:066:242:39
7:41
+0:29
Finish
26.22 mi12:48:402:48:046:256:58
6:50
-0:51

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

5:54 /mi

Average Pace

6:25 /mi

Slowest Pace

7:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:33:19

56% of race

Time at Steady Pace

49:29

29% of race

Time at Slower Pace

25:16

15% of race

Average Pace: 6:25 /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 mi10:19:0818:325:5818:32
5:58
#977
10K
6.21 mi10:37:2836:525:5618:20
5:54
#903
15K
9.32 mi10:55:5355:175:5618:25
5:56
#872
20K
12.43 mi11:14:421:14:065:5818:49
6:03
#902
Half
13.11 mi11:18:491:18:135:584:07
6:02
#917
25K
15.53 mi11:33:551:33:196:0015:06
6:14
#971
30K
18.64 mi11:54:401:54:046:0720:45
6:41
#1192
20M
20.00 mi12:04:082:03:326:119:28
6:58
#1305
21M
21.00 mi12:11:372:11:016:147:29
7:29
#1416
35K
21.75 mi12:16:522:16:166:165:15
7:01
#1499
23M
23.00 mi12:25:512:25:156:198:59
7:10
#1610
24M
24.00 mi12:32:542:32:186:217:03
7:03
#1715
40K
24.85 mi12:39:032:38:276:236:09
7:12
#1807
25.2M
25.20 mi12:41:422:41:066:242:39
7:41
#1822
Finish
26.22 mi12:48:402:48:046:256:58
6:50
#1900
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9775555827(Top 3%)48(Top 0.4%)48(Top 0.9%)
10K6.21 mi3.10 mi903+7451+451+4833(Top 3%)48(Top 0.4%)48(Top 0.9%)
15K9.32 mi3.11 mi872+3150+150+1827(Top 3%)48(Top 0.4%)48(Top 0.9%)
20K12.43 mi3.11 mi902-3051-151-11035(Top 4%)56(Top 0.5%)56(Top 1%)
Half13.11 mi0.68 mi917-1551511324(Top 5%)62(Top 0.5%)62(Top 1%)
25K15.53 mi2.42 mi971-5451511589(Top 6%)73(Top 0.6%)73(Top 1%)
30K18.64 mi3.11 mi1192-22162-1162-112799(Top 10%)143(Top 1%)143(Top 3%)
20M20.00 mi1.36 mi1305-11367-567-53931(Top 14%)306(Top 3%)306(Top 6%)
21M21.00 mi1.00 mi1416-11173-673-64560(Top 16%)496(Top 4%)496(Top 9%)
35K21.75 mi0.75 mi1499-8375-275-25497(Top 19%)747(Top 6%)747(Top 14%)
23M23.00 mi1.25 mi1610-11180-580-54742(Top 17%)591(Top 5%)591(Top 11%)
24M24.00 mi1.00 mi1715-10585-585-54934(Top 17%)699(Top 6%)699(Top 13%)
40K24.85 mi0.85 mi1807-9290-590-55031(Top 18%)778(Top 6%)778(Top 14%)
25.2M25.20 mi0.35 mi1822-1591-191-14311(Top 15%)633(Top 5%)633(Top 12%)
Finish26.22 mi1.02 mi1900-7894-394-34735(Top 17%)760(Top 6%)760(Top 14%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21story building
+97ft-345ft

Overall

827

Females

48

F18-39

48

5K→10K

3.1 - 6.2 mi

Top 3%
×5story building
+79ft-138ft

Overall

833

Females

48

F18-39

48

10K→15K

6.2 - 9.3 mi

Top 3%
×3story building
+67ft-78ft

Overall

827

Females

48

F18-39

48

15K→20K

9.3 - 12.4 mi

Top 4%
×5story building
+106ft-86ft

Overall

1035

Females

56

F18-39

56

20K→Half

12.4 - 13.1 mi

Top 5%
×2story building
+19ft-37ft

Overall

1324

Females

62

F18-39

62

Half→25K

13.1 - 15.5 mi

Top 6%
×4story building
+66ft-88ft

Overall

1589

Females

73

F18-39

73

25K→30K

15.5 - 18.6 mi

Top 10%
×9story building
+181ft-148ft

Overall

2799

Females

143

F18-39

143

30K→20M

18.6 - 20.0 mi

Top 14%
×5story building
+64ft-50ft

Overall

3931

Females

306

F18-39

306

20M→21M

20.0 - 21.0 mi

Top 16%
×8story building
+106ft-24ft

Overall

4560

Females

496

F18-39

496

21M→35K

21.0 - 21.8 mi

Top 19%
×7story building
+17ft-86ft

Overall

5497

Females

747

F18-39

747

35K→23M

21.8 - 23.0 mi

Top 17%
×5story building
+23ft-63ft

Overall

4742

Females

591

F18-39

591

23M→24M

23.0 - 24.0 mi

Top 17%
×6story building
+12ft-82ft

Overall

4934

Females

699

F18-39

699

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

5031

Females

778

F18-39

778

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

4311

Females

633

F18-39

633

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2story building
+22ft-21ft

Overall

4735

Females

760

F18-39

760

Passing Analysis

Category:
Athletes Passed
277
Passed By
1200
Net Change
-923
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#977
5K → 10K9622+74#977#903
10K → 15K4514+31#903#872
15K → 20K2252-30#872#902
20K → Half318-15#902#917
Half → 25K1367-54#917#971
25K → 30K15236-221#971#1192
30K → 20M11124-113#1192#1305
20M → 21M6117-111#1305#1416
21M → 35K891-83#1416#1499
35K → 23M22133-111#1499#1610
23M → 24M8113-105#1610#1715
24M → 40K698-92#1715#1807
40K → 25.2M924-15#1807#1822
25.2M → Finish1391-78#1822#1900
TOTALS2771200-923
📊

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