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BOSTON MARATHON 2025

William Hafferty

Bib: 31686•M

VT

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
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
9:10/mi
28:28
↑ 97↓ 3451.5%
10K· 6.21 mi
9:17/mi
57:18
↑ 79↓ 1380.4%
15K· 9.32 mi
8:59/mi
1:25:12
↑ 67↓ 78
20K· 12.43 mi
9:07/mi
1:53:33
↑ 106↓ 860.1%
Half· 13.11 mi
8:23/mi
1:59:16
↑ 19↓ 370.5%
25K· 15.53 mi
8:46/mi
2:20:32
↑ 66↓ 880.2%
30K· 18.64 mi
9:23/mi
2:49:42
↑ 181↓ 1480.2%
20M
9:25/mi
3:02:30
↑ 64↓ 500.2%
21M
9:34/mi
3:12:04
↑ 106↓ 241.6%
35K· 21.75 mi
8:32/mi
3:18:27
↑ 17↓ 861.7%
23M
8:37/mi
3:29:14
↑ 23↓ 630.6%
24M
8:15/mi
3:37:29
↓ 821.3%
40K· 24.85 mi
8:23/mi
3:44:39
↓ 200.3%
25.2M
8:56/mi
3:47:44
↑ 13↓ 160.2%
Finish· 26.22 mi
8:15/mi
3:56:08
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:59:16
Pace9:06 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:56:52
Pace8:55 /mi
📊Negative Split: 2.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:5728:289:1028:28
9:10
-
10K
6.21 mi12:19:4757:189:1328:50
9:17
+0:07
15K
9.32 mi12:47:411:25:129:0827:54
8:59
-0:18
20K
12.43 mi13:16:021:53:339:0828:21
9:07
+0:08
Half
13.11 mi13:21:451:59:169:065:43
8:23
-0:44
25K
15.53 mi13:43:012:20:329:0321:16
8:46
+0:23
30K
18.64 mi14:12:112:49:429:0629:10
9:23
+0:37
20M
20.00 mi14:24:593:02:309:0712:48
9:25
+0:02
21M
21.00 mi14:34:333:12:049:099:34
9:34
+0:09
35K
21.75 mi14:40:563:18:279:076:23
8:32
-1:02
23M
23.00 mi14:51:433:29:149:0610:47
8:37
+0:05
24M
24.00 mi14:59:583:37:299:048:15
8:15
-0:22
40K
24.85 mi15:07:083:44:399:027:10
8:23
+0:08
25.2M
25.20 mi15:10:133:47:449:023:05
8:56
+0:33
Finish
26.22 mi15:18:373:56:089:018:24
8:15
-0:41

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

8:15 /mi

Average Pace

9:01 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:57

42% of race

Time at Steady Pace

2:17:11

58% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:00 /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 mi11:50:5728:289:1028:28
9:10
#23076
10K
6.21 mi12:19:4757:189:1328:50
9:17
#23275
15K
9.32 mi12:47:411:25:129:0827:54
8:59
#22880
20K
12.43 mi13:16:021:53:339:0828:21
9:07
#22510
Half
13.11 mi13:21:451:59:169:065:43
8:23
#22335
25K
15.53 mi13:43:012:20:329:0321:16
8:46
#21760
30K
18.64 mi14:12:112:49:429:0629:10
9:23
#21348
20M
20.00 mi14:24:593:02:309:0712:48
9:25
#21136
21M
21.00 mi14:34:333:12:049:099:34
9:34
#20854
35K
21.75 mi14:40:563:18:279:076:23
8:32
#20682
23M
23.00 mi14:51:433:29:149:0610:47
8:37
#20363
24M
24.00 mi14:59:583:37:299:048:15
8:15
#20106
40K
24.85 mi15:07:083:44:399:027:10
8:23
#19856
25.2M
25.20 mi15:10:133:47:449:023:05
8:56
#19755
Finish
26.22 mi15:18:373:56:089:018:24
8:15
#19575
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi23076138011380121942(Top 77%)13363(Top 83%)13363(Top 237%)
10K6.21 mi3.10 mi23275-19913908-10713908-10723453(Top 83%)14003(Top 87%)14003(Top 248%)
15K9.32 mi3.11 mi22880+39513759+14913759+14921942(Top 77%)13363(Top 83%)13363(Top 237%)
20K12.43 mi3.11 mi22510+37013578+18113578+18121560(Top 76%)13156(Top 82%)13156(Top 233%)
Half13.11 mi0.68 mi22335+17513490+8813490+8818452(Top 65%)11814(Top 73%)11814(Top 209%)
25K15.53 mi2.42 mi21760+57513225+26513225+26518782(Top 66%)11874(Top 74%)11874(Top 210%)
30K18.64 mi3.11 mi21348+41213015+21013015+21019482(Top 69%)12049(Top 75%)12049(Top 214%)
20M20.00 mi1.36 mi21136+21212893+12212893+12218816(Top 66%)11598(Top 72%)11598(Top 206%)
21M21.00 mi1.00 mi20854+28212756+13712756+13716372(Top 58%)10422(Top 65%)10422(Top 185%)
35K21.75 mi0.75 mi20682+17212663+9312663+9315669(Top 55%)10037(Top 62%)10037(Top 178%)
23M23.00 mi1.25 mi20363+31912490+17312490+17314011(Top 49%)9184(Top 57%)9184(Top 163%)
24M24.00 mi1.00 mi20106+25712357+13312357+13312911(Top 45%)8615(Top 53%)8615(Top 153%)
40K24.85 mi0.85 mi19856+25012214+14312214+14312686(Top 45%)8392(Top 52%)8392(Top 149%)
25.2M25.20 mi0.35 mi19755+10112170+4412170+4411472(Top 40%)7732(Top 48%)7732(Top 137%)
Finish26.22 mi1.02 mi19575+18012065+10512065+10514550(Top 51%)9291(Top 58%)9291(Top 165%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

21942

Males

13363

M18-39

13363

5K→10K

3.1 - 6.2 mi

Top 83%
×5story building
+79ft-138ft

Overall

23453

Males

14003

M18-39

14003

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

21942

Males

13363

M18-39

13363

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

21560

Males

13156

M18-39

13156

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

18452

Males

11814

M18-39

11814

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

18782

Males

11874

M18-39

11874

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

19482

Males

12049

M18-39

12049

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

18816

Males

11598

M18-39

11598

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

16372

Males

10422

M18-39

10422

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

15669

Males

10037

M18-39

10037

35K→23M

21.8 - 23.0 mi

Top 49%
×5story building
+23ft-63ft

Overall

14011

Males

9184

M18-39

9184

23M→24M

23.0 - 24.0 mi

Top 45%
×6story building
+12ft-82ft

Overall

12911

Males

8615

M18-39

8615

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12686

Males

8392

M18-39

8392

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11472

Males

7732

M18-39

7732

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

14550

Males

9291

M18-39

9291

Passing Analysis

Category:
Athletes Passed
3956
Passed By
455
Net Change
+3501
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23076
5K → 10K140339-199#23076#23275
10K → 15K43237+395#23275#22880
15K → 20K40131+370#22880#22510
20K → Half1750+175#22510#22335
Half → 25K5761+575#22335#21760
25K → 30K44129+412#21760#21348
30K → 20M22311+212#21348#21136
20M → 21M2853+282#21136#20854
21M → 35K1731+172#20854#20682
35K → 23M3190+319#20682#20363
23M → 24M2570+257#20363#20106
24M → 40K2500+250#20106#19856
40K → 25.2M1021+101#19856#19755
25.2M → Finish1822+180#19755#19575
TOTALS3956455+3501
📊

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