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BOSTON MARATHON 2025

Duncan Fraser

Bib: 27584•M

MA

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
9:18/mi
28:53
↑ 97↓ 3451.5%
10K· 6.21 mi
9:09/mi
57:20
↑ 79↓ 1380.4%
15K· 9.32 mi
9:25/mi
1:26:35
↑ 67↓ 78
20K· 12.43 mi
9:17/mi
1:55:26
↑ 106↓ 860.1%
Half· 13.11 mi
9:07/mi
2:01:39
↑ 19↓ 370.5%
25K· 15.53 mi
9:44/mi
2:25:16
↑ 66↓ 880.2%
30K· 18.64 mi
11:00/mi
2:59:25
↑ 181↓ 1480.2%
20M
11:28/mi
3:15:00
↑ 64↓ 500.2%
21M
13:40/mi
3:28:40
↑ 106↓ 241.6%
35K· 21.75 mi
12:10/mi
3:37:46
↑ 17↓ 861.7%
23M
12:55/mi
3:53:56
↑ 23↓ 630.6%
24M
11:56/mi
4:05:52
↓ 821.3%
40K· 24.85 mi
12:39/mi
4:16:41
↓ 200.3%
25.2M
12:34/mi
4:21:01
↑ 13↓ 160.2%
Finish· 26.22 mi
10:01/mi
4:31:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:39
Pace9:17 /mi
2nd Half
Distance13.11 mi
Time2:29:34
Pace11:25 /mi
📊Positive Split: 22.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:1828:539:1828:53
9:18
-
10K
6.21 mi12:13:4557:209:1428:27
9:09
-0:09
15K
9.32 mi12:43:001:26:359:1729:15
9:25
+0:16
20K
12.43 mi13:11:511:55:269:1728:51
9:17
-0:08
Half
13.11 mi13:18:042:01:399:176:13
9:07
-0:10
25K
15.53 mi13:41:412:25:169:2123:37
9:44
+0:37
30K
18.64 mi14:15:502:59:259:3734:09
11:00
+1:16
20M
20.00 mi14:31:253:15:009:4515:35
11:28
+0:28
21M
21.00 mi14:45:053:28:409:5613:40
13:40
+2:12
35K
21.75 mi14:54:113:37:4610:019:06
12:10
-1:30
23M
23.00 mi15:10:213:53:5610:1016:10
12:55
+0:45
24M
24.00 mi15:22:174:05:5210:1511:56
11:56
-0:59
40K
24.85 mi15:33:064:16:4110:2010:49
12:39
+0:43
25.2M
25.20 mi15:37:264:21:0110:214:20
12:34
-0:05
Finish
26.22 mi15:47:384:31:1310:2110:12
10:01
-2:33

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

9:07 /mi

Average Pace

10:21 /mi

Slowest Pace

13:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:28

57% of race

Time at Steady Pace

49:44

18% of race

Time at Slower Pace

1:06:01

24% of race

Average Pace: 10:21 /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 mi11:45:1828:539:1828:53
9:18
#23544
10K
6.21 mi12:13:4557:209:1428:27
9:09
#23303
15K
9.32 mi12:43:001:26:359:1729:15
9:25
#23400
20K
12.43 mi13:11:511:55:269:1728:51
9:17
#23099
Half
13.11 mi13:18:042:01:399:176:13
9:07
#23065
25K
15.53 mi13:41:412:25:169:2123:37
9:44
#22960
30K
18.64 mi14:15:502:59:259:3734:09
11:00
#23171
20M
20.00 mi14:31:253:15:009:4515:35
11:28
#23280
21M
21.00 mi14:45:053:28:409:5613:40
13:40
#23544
35K
21.75 mi14:54:113:37:4610:019:06
12:10
#23704
23M
23.00 mi15:10:213:53:5610:1016:10
12:55
#23922
24M
24.00 mi15:22:174:05:5210:1511:56
11:56
#24023
40K
24.85 mi15:33:064:16:4110:2010:49
12:39
#24147
25.2M
25.20 mi15:37:264:21:0110:214:20
12:34
#24160
Finish
26.22 mi15:47:384:31:1310:2110:12
10:01
#24121
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi23544140241402423511(Top 83%)14065(Top 87%)14065(Top 249%)
10K6.21 mi3.10 mi23303+24113926+9813926+9823028(Top 81%)13817(Top 86%)13817(Top 245%)
15K9.32 mi3.11 mi23400-9713989-6313989-6323511(Top 83%)14065(Top 87%)14065(Top 249%)
20K12.43 mi3.11 mi23099+30113856+13313856+13322229(Top 78%)13460(Top 84%)13460(Top 239%)
Half13.11 mi0.68 mi23065+3413840+1613840+1622252(Top 78%)13453(Top 84%)13453(Top 238%)
25K15.53 mi2.42 mi22960+10513778+6213778+6222605(Top 80%)13565(Top 84%)13565(Top 240%)
30K18.64 mi3.11 mi23171-21113829-5113829-5123984(Top 84%)14065(Top 87%)14065(Top 249%)
20M20.00 mi1.36 mi23280-10913867-3813867-3824482(Top 86%)14204(Top 88%)14204(Top 252%)
21M21.00 mi1.00 mi23544-26413961-9413961-9425840(Top 91%)14810(Top 92%)14810(Top 262%)
35K21.75 mi0.75 mi23704-16014028-6714028-6726088(Top 92%)14876(Top 92%)14876(Top 264%)
23M23.00 mi1.25 mi23922-21814100-7214100-7226277(Top 93%)14971(Top 93%)14971(Top 265%)
24M24.00 mi1.00 mi24023-10114140-4014140-4025586(Top 90%)14594(Top 91%)14594(Top 259%)
40K24.85 mi0.85 mi24147-12414181-4114181-4125865(Top 91%)14720(Top 91%)14720(Top 261%)
25.2M25.20 mi0.35 mi24160-13141811418124312(Top 86%)13926(Top 86%)13926(Top 247%)
Finish26.22 mi1.02 mi24121+3914160+2114160+2122964(Top 81%)13259(Top 82%)13259(Top 235%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21story building
+97ft-345ft

Overall

23511

Males

14065

M18-39

14065

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

23028

Males

13817

M18-39

13817

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+67ft-78ft

Overall

23511

Males

14065

M18-39

14065

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

22229

Males

13460

M18-39

13460

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

22252

Males

13453

M18-39

13453

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

22605

Males

13565

M18-39

13565

25K→30K

15.5 - 18.6 mi

Top 84%
×9story building
+181ft-148ft

Overall

23984

Males

14065

M18-39

14065

30K→20M

18.6 - 20.0 mi

Top 86%
×5story building
+64ft-50ft

Overall

24482

Males

14204

M18-39

14204

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

25840

Males

14810

M18-39

14810

21M→35K

21.0 - 21.8 mi

Top 92%
×7story building
+17ft-86ft

Overall

26088

Males

14876

M18-39

14876

35K→23M

21.8 - 23.0 mi

Top 93%
×5story building
+23ft-63ft

Overall

26277

Males

14971

M18-39

14971

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

25586

Males

14594

M18-39

14594

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

25865

Males

14720

M18-39

14720

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

24312

Males

13926

M18-39

13926

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

22964

Males

13259

M18-39

13259

Passing Analysis

Category:
Athletes Passed
1378
Passed By
1955
Net Change
-577
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23544
5K → 10K370129+241#23544#23303
10K → 15K147244-97#23303#23400
15K → 20K32625+301#23400#23099
20K → Half4612+34#23099#23065
Half → 25K18075+105#23065#22960
25K → 30K105316-211#22960#23171
30K → 20M46155-109#23171#23280
20M → 21M19283-264#23280#23544
21M → 35K12172-160#23544#23704
35K → 23M24242-218#23704#23922
23M → 24M21122-101#23922#24023
24M → 40K12136-124#24023#24147
40K → 25.2M1023-13#24147#24160
25.2M → Finish6021+39#24160#24121
TOTALS13781955-577
📊

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