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BOSTON MARATHON 2025

Byron Campaña

Bib: 1259•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 2%
Gender (Male)
#0 / 16105
Top 3%
Division (M18-39)
#0 / 5642
Top 8%
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
5:46/mi
17:55
↑ 97↓ 3451.5%
10K· 6.21 mi
5:42/mi
35:36
↑ 79↓ 1380.4%
15K· 9.32 mi
5:42/mi
53:17
↑ 67↓ 78
20K· 12.43 mi
5:51/mi
1:11:27
↑ 106↓ 860.1%
Half· 13.11 mi
5:49/mi
1:15:25
↑ 19↓ 370.5%
25K· 15.53 mi
5:55/mi
1:29:46
↑ 66↓ 880.2%
30K· 18.64 mi
6:08/mi
1:48:50
↑ 181↓ 1480.2%
20M
6:18/mi
1:57:24
↑ 64↓ 500.2%
21M
6:42/mi
2:04:06
↑ 106↓ 241.6%
35K· 21.75 mi
6:10/mi
2:08:43
↑ 17↓ 861.7%
23M
6:20/mi
2:16:39
↑ 23↓ 630.6%
24M
6:09/mi
2:22:48
↓ 821.3%
40K· 24.85 mi
6:20/mi
2:28:13
↓ 200.3%
25.2M
6:52/mi
2:30:35
↑ 13↓ 160.2%
Finish· 26.22 mi
6:00/mi
2:36:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:15:25
Pace5:45 /mi
2nd Half
Distance13.11 mi
Time1:21:17
Pace6:12 /mi
📊Positive Split: 7.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:3317:555:4617:55
5:46
-
10K
6.21 mi10:36:1435:365:4417:41
5:42
-0:04
15K
9.32 mi10:53:5553:175:4317:41
5:42
0:00
20K
12.43 mi11:12:051:11:275:4518:10
5:51
+0:09
Half
13.11 mi11:16:031:15:255:453:58
5:49
-0:02
25K
15.53 mi11:30:241:29:465:4714:21
5:55
+0:06
30K
18.64 mi11:49:281:48:505:5019:04
6:08
+0:13
20M
20.00 mi11:58:021:57:245:528:34
6:18
+0:10
21M
21.00 mi12:04:442:04:065:556:42
6:42
+0:24
35K
21.75 mi12:09:212:08:435:554:37
6:10
-0:32
23M
23.00 mi12:17:172:16:395:567:56
6:20
+0:10
24M
24.00 mi12:23:262:22:485:576:09
6:09
-0:11
40K
24.85 mi12:28:512:28:135:585:25
6:20
+0:11
25.2M
25.20 mi12:31:132:30:355:592:22
6:52
+0:32
Finish
26.22 mi12:37:202:36:425:596:07
6:00
-0:52

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

5:42 /mi

Average Pace

5:59 /mi

Slowest Pace

6:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:46

57% of race

Time at Steady Pace

44:31

28% of race

Time at Slower Pace

22:25

14% of race

Average Pace: 5:59 /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 mi10:18:3317:555:4617:55
5:46
#544
10K
6.21 mi10:36:1435:365:4417:41
5:42
#489
15K
9.32 mi10:53:5553:175:4317:41
5:42
#435
20K
12.43 mi11:12:051:11:275:4518:10
5:51
#453
Half
13.11 mi11:16:031:15:255:453:58
5:49
#460
25K
15.53 mi11:30:241:29:465:4714:21
5:55
#472
30K
18.64 mi11:49:281:48:505:5019:04
6:08
#488
20M
20.00 mi11:58:021:57:245:528:34
6:18
#505
21M
21.00 mi12:04:442:04:065:556:42
6:42
#522
35K
21.75 mi12:09:212:08:435:554:37
6:10
#531
23M
23.00 mi12:17:172:16:395:567:56
6:20
#542
24M
24.00 mi12:23:262:22:485:576:09
6:09
#543
40K
24.85 mi12:28:512:28:135:585:25
6:20
#553
25.2M
25.20 mi12:31:132:30:355:592:22
6:52
#550
Finish
26.22 mi12:37:202:36:425:596:07
6:00
#548
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi544505505369(Top 1%)340(Top 2%)340(Top 6%)
10K6.21 mi3.10 mi489+55451+54451+54433(Top 2%)398(Top 2%)398(Top 7%)
15K9.32 mi3.11 mi435+54400+51400+51369(Top 1%)340(Top 2%)340(Top 6%)
20K12.43 mi3.11 mi453-18417-17417-17509(Top 2%)470(Top 3%)470(Top 8%)
Half13.11 mi0.68 mi460-7424-7424-7604(Top 2%)565(Top 4%)565(Top 10%)
25K15.53 mi2.42 mi472-12436-12436-12606(Top 2%)560(Top 3%)560(Top 10%)
30K18.64 mi3.11 mi488-16451-15451-15756(Top 3%)708(Top 4%)708(Top 13%)
20M20.00 mi1.36 mi505-17464-13464-13961(Top 3%)906(Top 6%)906(Top 16%)
21M21.00 mi1.00 mi522-17480-16480-161177(Top 4%)1111(Top 7%)1111(Top 20%)
35K21.75 mi0.75 mi531-9487-7487-71112(Top 4%)1047(Top 7%)1047(Top 19%)
23M23.00 mi1.25 mi542-11499-12499-12950(Top 3%)894(Top 6%)894(Top 16%)
24M24.00 mi1.00 mi543-1500-1500-1876(Top 3%)822(Top 5%)822(Top 15%)
40K24.85 mi0.85 mi553-10509-9509-91036(Top 4%)968(Top 6%)968(Top 17%)
25.2M25.20 mi0.35 mi550+3505+4505+41082(Top 4%)992(Top 6%)992(Top 18%)
Finish26.22 mi1.02 mi548+2505505907(Top 3%)852(Top 5%)852(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1%
×21story building
+97ft-345ft

Overall

369

Males

340

M18-39

340

5K→10K

3.1 - 6.2 mi

Top 2%
×5story building
+79ft-138ft

Overall

433

Males

398

M18-39

398

10K→15K

6.2 - 9.3 mi

Top 1%
×3story building
+67ft-78ft

Overall

369

Males

340

M18-39

340

15K→20K

9.3 - 12.4 mi

Top 2%
×5story building
+106ft-86ft

Overall

509

Males

470

M18-39

470

20K→Half

12.4 - 13.1 mi

Top 2%
×2story building
+19ft-37ft

Overall

604

Males

565

M18-39

565

Half→25K

13.1 - 15.5 mi

Top 2%
×4story building
+66ft-88ft

Overall

606

Males

560

M18-39

560

25K→30K

15.5 - 18.6 mi

Top 3%
×9story building
+181ft-148ft

Overall

756

Males

708

M18-39

708

30K→20M

18.6 - 20.0 mi

Top 3%
×5story building
+64ft-50ft

Overall

961

Males

906

M18-39

906

20M→21M

20.0 - 21.0 mi

Top 4%
×8story building
+106ft-24ft

Overall

1177

Males

1111

M18-39

1111

21M→35K

21.0 - 21.8 mi

Top 4%
×7story building
+17ft-86ft

Overall

1112

Males

1047

M18-39

1047

35K→23M

21.8 - 23.0 mi

Top 3%
×5story building
+23ft-63ft

Overall

950

Males

894

M18-39

894

23M→24M

23.0 - 24.0 mi

Top 3%
×6story building
+12ft-82ft

Overall

876

Males

822

M18-39

822

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1036

Males

968

M18-39

968

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1082

Males

992

M18-39

992

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2story building
+22ft-21ft

Overall

907

Males

852

M18-39

852

Passing Analysis

Category:
Athletes Passed
229
Passed By
233
Net Change
-4
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#544
5K → 10K6611+55#544#489
10K → 15K584+54#489#435
15K → 20K1230-18#435#453
20K → Half29-7#453#460
Half → 25K1527-12#460#472
25K → 30K1430-16#472#488
30K → 20M623-17#488#505
20M → 21M623-17#505#522
21M → 35K817-9#522#531
35K → 23M920-11#531#542
23M → 24M1112-1#542#543
24M → 40K616-10#543#553
40K → 25.2M74+3#553#550
25.2M → Finish97+2#550#548
TOTALS229233-4
📊

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