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BOSTON MARATHON 2025

Stacy Bradburn

Bib: 27454•M

ME

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
9:02/mi
28:05
↑ 97↓ 3451.5%
10K· 6.21 mi
8:53/mi
55:40
↑ 79↓ 1380.4%
15K· 9.32 mi
8:52/mi
1:23:12
↑ 67↓ 78
20K· 12.43 mi
9:12/mi
1:51:47
↑ 106↓ 860.1%
Half· 13.11 mi
9:05/mi
1:57:59
↑ 19↓ 370.5%
25K· 15.53 mi
10:03/mi
2:22:21
↑ 66↓ 880.2%
30K· 18.64 mi
10:58/mi
2:56:25
↑ 181↓ 1480.2%
20M
11:22/mi
3:11:52
↑ 64↓ 500.2%
21M
13:37/mi
3:25:29
↑ 106↓ 241.6%
35K· 21.75 mi
11:10/mi
3:33:50
↑ 17↓ 861.7%
23M
11:47/mi
3:48:35
↑ 23↓ 630.6%
24M
10:25/mi
3:59:00
↓ 821.3%
40K· 24.85 mi
10:58/mi
4:08:23
↓ 200.3%
25.2M
11:56/mi
4:12:30
↑ 13↓ 160.2%
Finish· 26.22 mi
10:00/mi
4:22:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:59
Pace9:00 /mi
2nd Half
Distance13.11 mi
Time2:24:42
Pace11:02 /mi
📊Positive Split: 22.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:1228:059:0228:05
9:02
-
10K
6.21 mi12:11:4755:408:5827:35
8:53
-0:09
15K
9.32 mi12:39:191:23:128:5627:32
8:52
-0:01
20K
12.43 mi13:07:541:51:479:0028:35
9:12
+0:20
Half
13.11 mi13:14:061:57:599:006:12
9:05
-0:07
25K
15.53 mi13:38:282:22:219:1024:22
10:03
+0:58
30K
18.64 mi14:12:322:56:259:2834:04
10:58
+0:55
20M
20.00 mi14:27:593:11:529:3615:27
11:22
+0:24
21M
21.00 mi14:41:363:25:299:4713:37
13:37
+2:15
35K
21.75 mi14:49:573:33:509:508:21
11:10
-2:27
23M
23.00 mi15:04:423:48:359:5614:45
11:47
+0:37
24M
24.00 mi15:15:073:59:009:5810:25
10:25
-1:22
40K
24.85 mi15:24:304:08:2310:009:23
10:58
+0:33
25.2M
25.20 mi15:28:374:12:3010:014:07
11:56
+0:58
Finish
26.22 mi15:38:484:22:4110:0210:11
10:00
-1:56

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

8:52 /mi

Average Pace

10:02 /mi

Slowest Pace

13:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:59

45% of race

Time at Steady Pace

1:28:25

34% of race

Time at Slower Pace

56:17

21% of race

Average Pace: 10:01 /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 mi11:44:1228:059:0228:05
9:02
#22589
10K
6.21 mi12:11:4755:408:5827:35
8:53
#22251
15K
9.32 mi12:39:191:23:128:5627:32
8:52
#21944
20K
12.43 mi13:07:541:51:479:0028:35
9:12
#21910
Half
13.11 mi13:14:061:57:599:006:12
9:05
#21923
25K
15.53 mi13:38:282:22:219:1024:22
10:03
#22302
30K
18.64 mi14:12:322:56:259:2834:04
10:58
#22697
20M
20.00 mi14:27:593:11:529:3615:27
11:22
#22841
21M
21.00 mi14:41:363:25:299:4713:37
13:37
#23107
35K
21.75 mi14:49:573:33:509:508:21
11:10
#23170
23M
23.00 mi15:04:423:48:359:5614:45
11:47
#23302
24M
24.00 mi15:15:073:59:009:5810:25
10:25
#23249
40K
24.85 mi15:24:304:08:2310:009:23
10:58
#23247
25.2M
25.20 mi15:28:374:12:3010:014:07
11:56
#23242
Finish
26.22 mi15:38:484:22:4110:0210:11
10:00
#23234
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22589135761357621346(Top 75%)13101(Top 81%)13101(Top 232%)
10K6.21 mi3.10 mi22251+33813435+14113435+14121794(Top 77%)13261(Top 82%)13261(Top 235%)
15K9.32 mi3.11 mi21944+30713315+12013315+12021346(Top 75%)13101(Top 81%)13101(Top 232%)
20K12.43 mi3.11 mi21910+3413298+1713298+1721890(Top 77%)13303(Top 83%)13303(Top 236%)
Half13.11 mi0.68 mi21923-1313305-713305-722169(Top 78%)13414(Top 83%)13414(Top 238%)
25K15.53 mi2.42 mi22302-37913480-17513480-17523377(Top 82%)13907(Top 86%)13907(Top 246%)
30K18.64 mi3.11 mi22697-39513621-14113621-14123943(Top 84%)14041(Top 87%)14041(Top 249%)
20M20.00 mi1.36 mi22841-14413654-3313654-3324302(Top 86%)14123(Top 88%)14123(Top 250%)
21M21.00 mi1.00 mi23107-26613765-11113765-11125784(Top 91%)14777(Top 92%)14777(Top 262%)
35K21.75 mi0.75 mi23170-6313787-2213787-2224530(Top 86%)14119(Top 88%)14119(Top 250%)
23M23.00 mi1.25 mi23302-13213817-3013817-3024726(Top 87%)14204(Top 88%)14204(Top 252%)
24M24.00 mi1.00 mi23249+5313768+4913768+4922569(Top 79%)13095(Top 81%)13095(Top 232%)
40K24.85 mi0.85 mi23247+213753+1513753+1523079(Top 81%)13279(Top 82%)13279(Top 235%)
25.2M25.20 mi0.35 mi23242+513744+913744+923088(Top 81%)13331(Top 83%)13331(Top 236%)
Finish26.22 mi1.02 mi23234+813731+1313731+1322918(Top 81%)13234(Top 82%)13234(Top 235%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

21346

Males

13101

M18-39

13101

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

21794

Males

13261

M18-39

13261

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

21346

Males

13101

M18-39

13101

15K→20K

9.3 - 12.4 mi

Top 77%
×5story building
+106ft-86ft

Overall

21890

Males

13303

M18-39

13303

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

22169

Males

13414

M18-39

13414

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

23377

Males

13907

M18-39

13907

25K→30K

15.5 - 18.6 mi

Top 84%
×9story building
+181ft-148ft

Overall

23943

Males

14041

M18-39

14041

30K→20M

18.6 - 20.0 mi

Top 86%
×5story building
+64ft-50ft

Overall

24302

Males

14123

M18-39

14123

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

25784

Males

14777

M18-39

14777

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

24530

Males

14119

M18-39

14119

35K→23M

21.8 - 23.0 mi

Top 87%
×5story building
+23ft-63ft

Overall

24726

Males

14204

M18-39

14204

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

22569

Males

13095

M18-39

13095

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

23079

Males

13279

M18-39

13279

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

23088

Males

13331

M18-39

13331

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

22918

Males

13234

M18-39

13234

Passing Analysis

Category:
Athletes Passed
1522
Passed By
2167
Net Change
-645
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22589
5K → 10K460122+338#22589#22251
10K → 15K37265+307#22251#21944
15K → 20K212178+34#21944#21910
20K → Half3346-13#21910#21923
Half → 25K50429-379#21923#22302
25K → 30K85480-395#22302#22697
30K → 20M43187-144#22697#22841
20M → 21M17283-266#22841#23107
21M → 35K2386-63#23107#23170
35K → 23M33165-132#23170#23302
23M → 24M7926+53#23302#23249
24M → 40K5250+2#23249#23247
40K → 25.2M2015+5#23247#23242
25.2M → Finish4335+8#23242#23234
TOTALS15222167-645
📊

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