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BOSTON MARATHON 2025

Christian Salemy

Bib: 5277•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 9%
Gender (Male)
#0 / 16105
Top 15%
Division (M18-39)
#0 / 5642
Top 35%
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
6:32/mi
20:18
↑ 97↓ 3451.5%
10K· 6.21 mi
6:28/mi
40:23
↑ 79↓ 1380.4%
15K· 9.32 mi
6:29/mi
1:00:32
↑ 67↓ 78
20K· 12.43 mi
6:30/mi
1:20:45
↑ 106↓ 860.1%
Half· 13.11 mi
6:27/mi
1:25:09
↑ 19↓ 370.5%
25K· 15.53 mi
6:29/mi
1:40:52
↑ 66↓ 880.2%
30K· 18.64 mi
6:38/mi
2:01:30
↑ 181↓ 1480.2%
20M
6:47/mi
2:10:43
↑ 64↓ 500.2%
21M
7:00/mi
2:17:43
↑ 106↓ 241.6%
35K· 21.75 mi
6:41/mi
2:22:43
↑ 17↓ 861.7%
23M
6:33/mi
2:30:55
↑ 23↓ 630.6%
24M
6:30/mi
2:37:25
↓ 821.3%
40K· 24.85 mi
6:40/mi
2:43:07
↓ 200.3%
25.2M
7:12/mi
2:45:36
↑ 13↓ 160.2%
Finish· 26.22 mi
5:59/mi
2:51:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:09
Pace6:30 /mi
2nd Half
Distance13.11 mi
Time1:26:33
Pace6:36 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:1420:186:3220:18
6:32
-
10K
6.21 mi10:44:1940:236:3020:05
6:28
-0:04
15K
9.32 mi11:04:281:00:326:3020:09
6:29
+0:01
20K
12.43 mi11:24:411:20:456:3020:13
6:30
+0:01
Half
13.11 mi11:29:051:25:096:304:24
6:27
-0:03
25K
15.53 mi11:44:481:40:526:3015:43
6:29
+0:02
30K
18.64 mi12:05:262:01:306:3120:38
6:38
+0:09
20M
20.00 mi12:14:392:10:436:329:13
6:47
+0:09
21M
21.00 mi12:21:392:17:436:337:00
7:00
+0:13
35K
21.75 mi12:26:392:22:436:345:00
6:41
-0:19
23M
23.00 mi12:34:512:30:556:348:12
6:33
-0:08
24M
24.00 mi12:41:212:37:256:346:30
6:30
-0:03
40K
24.85 mi12:47:032:43:076:345:42
6:40
+0:10
25.2M
25.20 mi12:49:322:45:366:342:29
7:12
+0:32
Finish
26.22 mi12:55:382:51:426:336:06
5:59
-1:13

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

5:59 /mi

Average Pace

6:33 /mi

Slowest Pace

7:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

6:06

4% of race

Time at Steady Pace

2:16:12

79% of race

Time at Slower Pace

29:24

17% of race

Average Pace: 6:33 /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 mi10:24:1420:186:3220:18
6:32
#4088
10K
6.21 mi10:44:1940:236:3020:05
6:28
#3770
15K
9.32 mi11:04:281:00:326:3020:09
6:29
#3659
20K
12.43 mi11:24:411:20:456:3020:13
6:30
#3491
Half
13.11 mi11:29:051:25:096:304:24
6:27
#3476
25K
15.53 mi11:44:481:40:526:3015:43
6:29
#3328
30K
18.64 mi12:05:262:01:306:3120:38
6:38
#3143
20M
20.00 mi12:14:392:10:436:329:13
6:47
#3075
21M
21.00 mi12:21:392:17:436:337:00
7:00
#2996
35K
21.75 mi12:26:392:22:436:345:00
6:41
#2973
23M
23.00 mi12:34:512:30:556:348:12
6:33
#2837
24M
24.00 mi12:41:212:37:256:346:30
6:30
#2766
40K
24.85 mi12:47:032:43:076:345:42
6:40
#2711
25.2M
25.20 mi12:49:322:45:366:342:29
7:12
#2692
Finish
26.22 mi12:55:382:51:426:336:06
5:59
#2576
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4088385538553473(Top 12%)3289(Top 20%)3289(Top 58%)
10K6.21 mi3.10 mi3770+3183570+2853570+2853479(Top 12%)3298(Top 20%)3298(Top 58%)
15K9.32 mi3.11 mi3659+1113461+1093461+1093473(Top 12%)3289(Top 20%)3289(Top 58%)
20K12.43 mi3.11 mi3491+1683309+1523309+1523169(Top 11%)3009(Top 19%)3009(Top 53%)
Half13.11 mi0.68 mi3476+153293+163293+163387(Top 12%)3213(Top 20%)3213(Top 57%)
25K15.53 mi2.42 mi3328+1483164+1293164+1292801(Top 10%)2665(Top 17%)2665(Top 47%)
30K18.64 mi3.11 mi3143+1852988+1762988+1762611(Top 9%)2472(Top 15%)2472(Top 44%)
20M20.00 mi1.36 mi3075+682918+702918+702842(Top 10%)2658(Top 17%)2658(Top 47%)
21M21.00 mi1.00 mi2996+792842+762842+762270(Top 8%)2121(Top 13%)2121(Top 38%)
35K21.75 mi0.75 mi2973+232816+262816+263416(Top 12%)3115(Top 19%)3115(Top 55%)
23M23.00 mi1.25 mi2837+1362690+1262690+1261651(Top 6%)1544(Top 10%)1544(Top 27%)
24M24.00 mi1.00 mi2766+712623+672623+672072(Top 7%)1925(Top 12%)1925(Top 34%)
40K24.85 mi0.85 mi2711+552569+542569+542252(Top 8%)2067(Top 13%)2067(Top 37%)
25.2M25.20 mi0.35 mi2692+192550+192550+192177(Top 8%)1966(Top 12%)1966(Top 35%)
Finish26.22 mi1.02 mi2576+1162441+1092441+109895(Top 3%)844(Top 5%)844(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21story building
+97ft-345ft

Overall

3473

Males

3289

M18-39

3289

5K→10K

3.1 - 6.2 mi

Top 12%
×5story building
+79ft-138ft

Overall

3479

Males

3298

M18-39

3298

10K→15K

6.2 - 9.3 mi

Top 12%
×3story building
+67ft-78ft

Overall

3473

Males

3289

M18-39

3289

15K→20K

9.3 - 12.4 mi

Top 11%
×5story building
+106ft-86ft

Overall

3169

Males

3009

M18-39

3009

20K→Half

12.4 - 13.1 mi

Top 12%
×2story building
+19ft-37ft

Overall

3387

Males

3213

M18-39

3213

Half→25K

13.1 - 15.5 mi

Top 10%
×4story building
+66ft-88ft

Overall

2801

Males

2665

M18-39

2665

25K→30K

15.5 - 18.6 mi

Top 9%
×9story building
+181ft-148ft

Overall

2611

Males

2472

M18-39

2472

30K→20M

18.6 - 20.0 mi

Top 10%
×5story building
+64ft-50ft

Overall

2842

Males

2658

M18-39

2658

20M→21M

20.0 - 21.0 mi

Top 8%
×8story building
+106ft-24ft

Overall

2270

Males

2121

M18-39

2121

21M→35K

21.0 - 21.8 mi

Top 12%
×7story building
+17ft-86ft

Overall

3416

Males

3115

M18-39

3115

35K→23M

21.8 - 23.0 mi

Top 6%
×5story building
+23ft-63ft

Overall

1651

Males

1544

M18-39

1544

23M→24M

23.0 - 24.0 mi

Top 7%
×6story building
+12ft-82ft

Overall

2072

Males

1925

M18-39

1925

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2252

Males

2067

M18-39

2067

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2177

Males

1966

M18-39

1966

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2story building
+22ft-21ft

Overall

895

Males

844

M18-39

844

Passing Analysis

Category:
Athletes Passed
1763
Passed By
251
Net Change
+1512
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4088
5K → 10K35739+318#4088#3770
10K → 15K16655+111#3770#3659
15K → 20K19527+168#3659#3491
20K → Half227+15#3491#3476
Half → 25K16820+148#3476#3328
25K → 30K20318+185#3328#3143
30K → 20M9426+68#3143#3075
20M → 21M845+79#3075#2996
21M → 35K4522+23#2996#2973
35K → 23M1437+136#2973#2837
23M → 24M776+71#2837#2766
24M → 40K6813+55#2766#2711
40K → 25.2M245+19#2711#2692
25.2M → Finish1171+116#2692#2576
TOTALS1763251+1512
📊

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