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BOSTON MARATHON 2025

Simon Bruce

Bib: 5132•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 11%
Gender (Male)
#0 / 16105
Top 18%
Division (M18-39)
#0 / 5642
Top 41%
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
6:24/mi
19:52
↑ 97↓ 3451.5%
10K· 6.21 mi
6:23/mi
39:43
↑ 79↓ 1380.4%
15K· 9.32 mi
6:26/mi
59:42
↑ 67↓ 78
20K· 12.43 mi
6:28/mi
1:19:46
↑ 106↓ 860.1%
Half· 13.11 mi
6:24/mi
1:24:08
↑ 19↓ 370.5%
25K· 15.53 mi
6:30/mi
1:39:53
↑ 66↓ 880.2%
30K· 18.64 mi
6:42/mi
2:00:43
↑ 181↓ 1480.2%
20M
6:55/mi
2:10:07
↑ 64↓ 500.2%
21M
7:40/mi
2:17:47
↑ 106↓ 241.6%
35K· 21.75 mi
6:40/mi
2:22:46
↑ 17↓ 861.7%
23M
7:20/mi
2:31:57
↑ 23↓ 630.6%
24M
7:03/mi
2:39:00
↓ 821.3%
40K· 24.85 mi
6:58/mi
2:44:57
↓ 200.3%
25.2M
8:04/mi
2:47:44
↑ 13↓ 160.2%
Finish· 26.22 mi
6:41/mi
2:54:33
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:08
Pace6:25 /mi
2nd Half
Distance13.11 mi
Time1:30:25
Pace6:54 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:1419:526:2419:52
6:24
-
10K
6.21 mi10:43:0539:436:2419:51
6:23
-0:01
15K
9.32 mi11:03:0459:426:2419:59
6:26
+0:03
20K
12.43 mi11:23:081:19:466:2520:04
6:28
+0:02
Half
13.11 mi11:27:301:24:086:254:22
6:24
-0:04
25K
15.53 mi11:43:151:39:536:2615:45
6:30
+0:06
30K
18.64 mi12:04:052:00:436:2920:50
6:42
+0:12
20M
20.00 mi12:13:292:10:076:309:24
6:55
+0:13
21M
21.00 mi12:21:092:17:476:347:40
7:40
+0:45
35K
21.75 mi12:26:082:22:466:344:59
6:40
-1:00
23M
23.00 mi12:35:192:31:576:369:11
7:20
+0:40
24M
24.00 mi12:42:222:39:006:387:03
7:03
-0:17
40K
24.85 mi12:48:192:44:576:385:57
6:58
-0:05
25.2M
25.20 mi12:51:062:47:446:392:47
8:04
+1:06
Finish
26.22 mi12:57:552:54:336:406:49
6:41
-1:23

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

6:23 /mi

Average Pace

6:40 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:04:04

37% of race

Time at Steady Pace

1:17:51

45% of race

Time at Slower Pace

32:38

19% of race

Average Pace: 6:39 /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 mi10:23:1419:526:2419:52
6:24
#3076
10K
6.21 mi10:43:0539:436:2419:51
6:23
#3001
15K
9.32 mi11:03:0459:426:2419:59
6:26
#3036
20K
12.43 mi11:23:081:19:466:2520:04
6:28
#2975
Half
13.11 mi11:27:301:24:086:254:22
6:24
#2969
25K
15.53 mi11:43:151:39:536:2615:45
6:30
#2930
30K
18.64 mi12:04:052:00:436:2920:50
6:42
#2893
20M
20.00 mi12:13:292:10:076:309:24
6:55
#2911
21M
21.00 mi12:21:092:17:476:347:40
7:40
#3008
35K
21.75 mi12:26:082:22:466:344:59
6:40
#2985
23M
23.00 mi12:35:192:31:576:369:11
7:20
#3080
24M
24.00 mi12:42:222:39:006:387:03
7:03
#3134
40K
24.85 mi12:48:192:44:576:385:57
6:58
#3101
25.2M
25.20 mi12:51:062:47:446:392:47
8:04
#3129
Finish
26.22 mi12:57:552:54:336:406:49
6:41
#3132
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3076292129213131(Top 11%)2980(Top 19%)2980(Top 53%)
10K6.21 mi3.10 mi3001+752855+662855+662963(Top 10%)2821(Top 18%)2821(Top 50%)
15K9.32 mi3.11 mi3036-352890-352890-353131(Top 11%)2980(Top 19%)2980(Top 53%)
20K12.43 mi3.11 mi2975+612835+552835+552871(Top 10%)2734(Top 17%)2734(Top 48%)
Half13.11 mi0.68 mi2969+62830+52830+53037(Top 11%)2898(Top 18%)2898(Top 51%)
25K15.53 mi2.42 mi2930+392793+372793+372865(Top 10%)2726(Top 17%)2726(Top 48%)
30K18.64 mi3.11 mi2893+372755+382755+382908(Top 10%)2739(Top 17%)2739(Top 49%)
20M20.00 mi1.36 mi2911-182770-152770-153590(Top 13%)3306(Top 21%)3306(Top 59%)
21M21.00 mi1.00 mi3008-972852-822852-825436(Top 19%)4682(Top 29%)4682(Top 83%)
35K21.75 mi0.75 mi2985+232828+242828+243247(Top 11%)2963(Top 18%)2963(Top 53%)
23M23.00 mi1.25 mi3080-952913-852913-855612(Top 20%)4737(Top 29%)4737(Top 84%)
24M24.00 mi1.00 mi3134-542959-462959-464874(Top 17%)4162(Top 26%)4162(Top 74%)
40K24.85 mi0.85 mi3101+332926+332926+333646(Top 13%)3216(Top 20%)3216(Top 57%)
25.2M25.20 mi0.35 mi3129-282945-192945-196200(Top 22%)4833(Top 30%)4833(Top 86%)
Finish26.22 mi1.02 mi3132-32950-52950-53780(Top 13%)3268(Top 20%)3268(Top 58%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21story building
+97ft-345ft

Overall

3131

Males

2980

M18-39

2980

5K→10K

3.1 - 6.2 mi

Top 10%
×5story building
+79ft-138ft

Overall

2963

Males

2821

M18-39

2821

10K→15K

6.2 - 9.3 mi

Top 11%
×3story building
+67ft-78ft

Overall

3131

Males

2980

M18-39

2980

15K→20K

9.3 - 12.4 mi

Top 10%
×5story building
+106ft-86ft

Overall

2871

Males

2734

M18-39

2734

20K→Half

12.4 - 13.1 mi

Top 11%
×2story building
+19ft-37ft

Overall

3037

Males

2898

M18-39

2898

Half→25K

13.1 - 15.5 mi

Top 10%
×4story building
+66ft-88ft

Overall

2865

Males

2726

M18-39

2726

25K→30K

15.5 - 18.6 mi

Top 10%
×9story building
+181ft-148ft

Overall

2908

Males

2739

M18-39

2739

30K→20M

18.6 - 20.0 mi

Top 13%
×5story building
+64ft-50ft

Overall

3590

Males

3306

M18-39

3306

20M→21M

20.0 - 21.0 mi

Top 19%
×8story building
+106ft-24ft

Overall

5436

Males

4682

M18-39

4682

21M→35K

21.0 - 21.8 mi

Top 11%
×7story building
+17ft-86ft

Overall

3247

Males

2963

M18-39

2963

35K→23M

21.8 - 23.0 mi

Top 20%
×5story building
+23ft-63ft

Overall

5612

Males

4737

M18-39

4737

23M→24M

23.0 - 24.0 mi

Top 17%
×6story building
+12ft-82ft

Overall

4874

Males

4162

M18-39

4162

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3646

Males

3216

M18-39

3216

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

6200

Males

4833

M18-39

4833

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2story building
+22ft-21ft

Overall

3780

Males

3268

M18-39

3268

Passing Analysis

Category:
Athletes Passed
875
Passed By
931
Net Change
-56
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3076
5K → 10K16590+75#3076#3001
10K → 15K75110-35#3001#3036
15K → 20K11049+61#3036#2975
20K → Half1812+6#2975#2969
Half → 25K8546+39#2969#2930
25K → 30K13093+37#2930#2893
30K → 20M5169-18#2893#2911
20M → 21M18115-97#2911#3008
21M → 35K4219+23#3008#2985
35K → 23M34129-95#2985#3080
23M → 24M3185-54#3080#3134
24M → 40K5825+33#3134#3101
40K → 25.2M1543-28#3101#3129
25.2M → Finish4346-3#3129#3132
TOTALS875931-56
📊

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