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BOSTON MARATHON 2025

Claudio Bondi

Bib: 3809•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 11%
Gender (Male)
#0 / 16105
Top 19%
Masters (Masters Men)
#0 / 10463
Top 7%
Division (M45-49)
#0 / 2386
Top 7%
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
6:21/mi
19:44
↑ 97↓ 3451.5%
10K· 6.21 mi
6:27/mi
39:47
↑ 79↓ 1380.4%
15K· 9.32 mi
6:32/mi
1:00:06
↑ 67↓ 78
20K· 12.43 mi
6:37/mi
1:20:40
↑ 106↓ 860.1%
Half· 13.11 mi
6:33/mi
1:25:08
↑ 19↓ 370.5%
25K· 15.53 mi
6:41/mi
1:41:21
↑ 66↓ 880.2%
30K· 18.64 mi
6:57/mi
2:02:58
↑ 181↓ 1480.2%
20M
7:02/mi
2:12:31
↑ 64↓ 500.2%
21M
7:17/mi
2:19:48
↑ 106↓ 241.6%
35K· 21.75 mi
6:40/mi
2:24:47
↑ 17↓ 861.7%
23M
6:56/mi
2:33:28
↑ 23↓ 630.6%
24M
6:42/mi
2:40:10
↓ 821.3%
40K· 24.85 mi
6:44/mi
2:45:55
↓ 200.3%
25.2M
7:09/mi
2:48:23
↑ 13↓ 160.2%
Finish· 26.22 mi
6:23/mi
2:54:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:08
Pace6:30 /mi
2nd Half
Distance13.11 mi
Time1:29:45
Pace6:51 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:4119:446:2119:44
6:21
-
10K
6.21 mi10:41:4439:476:2420:03
6:27
+0:06
15K
9.32 mi11:02:031:00:066:2720:19
6:32
+0:05
20K
12.43 mi11:22:371:20:406:2920:34
6:37
+0:05
Half
13.11 mi11:27:051:25:086:304:28
6:33
-0:04
25K
15.53 mi11:43:181:41:216:3116:13
6:41
+0:08
30K
18.64 mi12:04:552:02:586:3621:37
6:57
+0:16
20M
20.00 mi12:14:282:12:316:389:33
7:02
+0:05
21M
21.00 mi12:21:452:19:486:397:17
7:17
+0:15
35K
21.75 mi12:26:442:24:476:394:59
6:40
-0:37
23M
23.00 mi12:35:252:33:286:408:41
6:56
+0:16
24M
24.00 mi12:42:072:40:106:406:42
6:42
-0:14
40K
24.85 mi12:47:522:45:556:415:45
6:44
+0:02
25.2M
25.20 mi12:50:202:48:236:412:28
7:09
+0:25
Finish
26.22 mi12:56:502:54:536:406:30
6:23
-0:46

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

6:21 /mi

Average Pace

6:40 /mi

Slowest Pace

7:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:35

89% of race

Time at Steady Pace

19:18

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:40 /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 mi10:21:4119:446:2119:44
6:21
#2760
10K
6.21 mi10:41:4439:476:2420:03
6:27
#3084
15K
9.32 mi11:02:031:00:066:2720:19
6:32
#3305
20K
12.43 mi11:22:371:20:406:2920:34
6:37
#3431
Half
13.11 mi11:27:051:25:086:304:28
6:33
#3461
25K
15.53 mi11:43:181:41:216:3116:13
6:41
#3540
30K
18.64 mi12:04:552:02:586:3621:37
6:57
#3638
20M
20.00 mi12:14:282:12:316:389:33
7:02
#3623
21M
21.00 mi12:21:452:19:486:397:17
7:17
#3593
35K
21.75 mi12:26:442:24:476:394:59
6:40
#3561
23M
23.00 mi12:35:252:33:286:408:41
6:56
#3499
24M
24.00 mi12:42:072:40:106:406:42
6:42
#3426
40K
24.85 mi12:47:522:45:556:415:45
6:44
#3355
25.2M
25.20 mi12:50:202:48:236:412:28
7:09
#3303
Finish
26.22 mi12:56:502:54:536:406:30
6:23
#3215
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi2760263026303803(Top 13%)3588(Top 22%)3588(Top 150%)
10K6.21 mi3.10 mi3084-3242933-3032933-3033385(Top 12%)3214(Top 20%)3214(Top 135%)
15K9.32 mi3.11 mi3305-2213140-2073140-2073803(Top 13%)3588(Top 22%)3588(Top 150%)
20K12.43 mi3.11 mi3431-1263253-1133253-1133817(Top 13%)3599(Top 22%)3599(Top 151%)
Half13.11 mi0.68 mi3461-303278-253278-253950(Top 14%)3714(Top 23%)3714(Top 156%)
25K15.53 mi2.42 mi3540-793349-713349-714027(Top 14%)3751(Top 23%)3751(Top 157%)
30K18.64 mi3.11 mi3638-983435-863435-864417(Top 16%)4040(Top 25%)4040(Top 169%)
20M20.00 mi1.36 mi3623+153418+173418+174243(Top 15%)3866(Top 24%)3866(Top 162%)
21M21.00 mi1.00 mi3593+303383+353383+353519(Top 12%)3218(Top 20%)3218(Top 135%)
35K21.75 mi0.75 mi3561+323352+313352+313250(Top 11%)2966(Top 18%)2966(Top 124%)
23M23.00 mi1.25 mi3499+623292+603292+603389(Top 12%)3077(Top 19%)3077(Top 129%)
24M24.00 mi1.00 mi3426+733222+703222+702965(Top 10%)2689(Top 17%)2689(Top 113%)
40K24.85 mi0.85 mi3355+713154+683154+682478(Top 9%)2260(Top 14%)2260(Top 95%)
25.2M25.20 mi0.35 mi3303+523106+483106+481966(Top 7%)1779(Top 11%)1779(Top 75%)
Finish26.22 mi1.02 mi3215+883021+853021+852207(Top 8%)2020(Top 13%)2020(Top 85%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21story building
+97ft-345ft

Overall

3803

Males

3588

M45-49

3588

5K→10K

3.1 - 6.2 mi

Top 12%
×5story building
+79ft-138ft

Overall

3385

Males

3214

M45-49

3214

10K→15K

6.2 - 9.3 mi

Top 13%
×3story building
+67ft-78ft

Overall

3803

Males

3588

M45-49

3588

15K→20K

9.3 - 12.4 mi

Top 13%
×5story building
+106ft-86ft

Overall

3817

Males

3599

M45-49

3599

20K→Half

12.4 - 13.1 mi

Top 14%
×2story building
+19ft-37ft

Overall

3950

Males

3714

M45-49

3714

Half→25K

13.1 - 15.5 mi

Top 14%
×4story building
+66ft-88ft

Overall

4027

Males

3751

M45-49

3751

25K→30K

15.5 - 18.6 mi

Top 16%
×9story building
+181ft-148ft

Overall

4417

Males

4040

M45-49

4040

30K→20M

18.6 - 20.0 mi

Top 15%
×5story building
+64ft-50ft

Overall

4243

Males

3866

M45-49

3866

20M→21M

20.0 - 21.0 mi

Top 12%
×8story building
+106ft-24ft

Overall

3519

Males

3218

M45-49

3218

21M→35K

21.0 - 21.8 mi

Top 11%
×7story building
+17ft-86ft

Overall

3250

Males

2966

M45-49

2966

35K→23M

21.8 - 23.0 mi

Top 12%
×5story building
+23ft-63ft

Overall

3389

Males

3077

M45-49

3077

23M→24M

23.0 - 24.0 mi

Top 10%
×6story building
+12ft-82ft

Overall

2965

Males

2689

M45-49

2689

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2478

Males

2260

M45-49

2260

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1966

Males

1779

M45-49

1779

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2story building
+22ft-21ft

Overall

2207

Males

2020

M45-49

2020

Passing Analysis

Category:
Athletes Passed
859
Passed By
1314
Net Change
-455
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2760
5K → 10K42366-324#2760#3084
10K → 15K30251-221#3084#3305
15K → 20K61187-126#3305#3431
20K → Half535-30#3431#3461
Half → 25K52131-79#3461#3540
25K → 30K74172-98#3540#3638
30K → 20M6651+15#3638#3623
20M → 21M5828+30#3623#3593
21M → 35K5220+32#3593#3561
35K → 23M9230+62#3561#3499
23M → 24M9118+73#3499#3426
24M → 40K798+71#3426#3355
40K → 25.2M553+52#3355#3303
25.2M → Finish10214+88#3303#3215
TOTALS8591314-455
📊

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