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BOSTON MARATHON 2023

Mahlon Reihman

NY

Bib: 25572 M

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
9:44/mi
30:15
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
9:12/mi
58:50
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
9:28/mi
1:28:15
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
9:42/mi
1:58:22
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
9:05/mi
2:04:34
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
10:12/mi
2:29:17
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
11:13/mi
3:04:07
↑ 181↓ 1480.2%
138 ft elev
20M
12:10/mi
3:20:39
↑ 64↓ 500.2%
148 ft elev
21M
12:37/mi
3:33:16
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
11:19/mi
3:41:44
↑ 17↓ 861.7%
156 ft elev
23M
11:37/mi
3:56:17
↑ 23↓ 630.6%
116 ft elev
24M
11:11/mi
4:07:28
↓ 821.3%
34 ft elev
40K· 24.85 mi
11:32/mi
4:17:20
↓ 200.3%
20 ft elev
25.2M
12:25/mi
4:21:37
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
11:00/mi
4:32:50
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
2:04:349:30 /mi⚡ faster
2nd Half
2:28:1611:19 /mi+19.0%
Positive split — 19.0% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:3330:159:4430:15
9:44
-
10K
6.21 mi12:16:0858:509:2828:35
9:12
-0:32
15K
9.32 mi12:45:331:28:159:2829:25
9:28
+0:16
20K
12.43 mi13:15:401:58:229:3130:07
9:42
+0:14
Half
13.11 mi13:21:522:04:349:306:12
9:05
-0:37
25K
15.53 mi13:46:352:29:179:3724:43
10:12
+1:07
30K
18.64 mi14:21:253:04:079:5334:50
11:13
+1:01
20M
20.00 mi14:37:573:20:3910:0216:32
12:10
+0:57
21M
21.00 mi14:50:343:33:1610:0912:37
12:37
+0:27
35K
21.75 mi14:59:023:41:4410:128:28
11:19
-1:18
23M
23.00 mi15:13:353:56:1710:1614:33
11:37
+0:18
24M
24.00 mi15:24:464:07:2810:1911:11
11:11
-0:26
40K
24.85 mi15:34:384:17:2010:219:52
11:32
+0:21
25.2M
25.20 mi15:38:554:21:3710:234:17
12:25
+0:53
Finish
26.22 mi15:50:084:32:5010:2511:13
11:00
-1:25

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

9:05 /mi

Average Pace

10:25 /mi

Slowest Pace

12:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

2:29:17

55% of race

Time at Steady Pace

1:30:07

33% of race

Time at Slower Pace

33:26

12% of race

Average Pace: 10:24 /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 mi11:47:3330:159:4430:15
9:44
#22751
10K
6.21 mi12:16:0858:509:2828:35
9:12
#22249
15K
9.32 mi12:45:331:28:159:2829:25
9:28
#22199
20K
12.43 mi13:15:401:58:229:3130:07
9:42
#22195
Half
13.11 mi13:21:522:04:349:306:12
9:05
#22114
25K
15.53 mi13:46:352:29:179:3724:43
10:12
#22232
30K
18.64 mi14:21:253:04:079:5334:50
11:13
#22509
20M
20.00 mi14:37:573:20:3910:0216:32
12:10
#22711
21M
21.00 mi14:50:343:33:1610:0912:37
12:37
#22772
35K
21.75 mi14:59:023:41:4410:128:28
11:19
#22835
23M
23.00 mi15:13:353:56:1710:1614:33
11:37
#22863
24M
24.00 mi15:24:464:07:2810:1911:11
11:11
#22866
40K
24.85 mi15:34:384:17:2010:219:52
11:32
#22894
25.2M
25.20 mi15:38:554:21:3710:234:17
12:25
#22903
Finish
26.22 mi15:50:084:32:5010:2511:13
11:00
#22950
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi227511347313473221581325713257
10K6.21 mi3.10 mi22249+50213255+21813255+218216191298812988
15K9.32 mi3.11 mi22199+5013242+1313242+13221581325713257
20K12.43 mi3.11 mi22195+413240+213240+2221471324613246
Half13.11 mi0.68 mi22114+8113199+4113199+41207871265412654
25K15.53 mi2.42 mi22232-11813248-4913248-49226011340513405
30K18.64 mi3.11 mi22509-27713358-11013358-110234341371013710
20M20.00 mi1.36 mi22711-20213440-8213440-82243941408714087
21M21.00 mi1.00 mi22772-6113462-2213462-22236021371413714
35K21.75 mi0.75 mi22835-6313487-2513487-25238171374813748
23M23.00 mi1.25 mi22863-2813483+413483+4234411359713597
24M24.00 mi1.00 mi22866-313477+613477+6233701351213512
40K24.85 mi0.85 mi22894-2813483-613483-6232641343613436
25.2M25.20 mi0.35 mi22903-913487-413487-4231501339013390
Finish26.22 mi1.02 mi22950-4713503-1613503-16239771380413804

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21story building
+97ft-345ft

Overall

22158

Males

13257

M18-39

13257

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

21619

Males

12988

M18-39

12988

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+67ft-78ft

Overall

22158

Males

13257

M18-39

13257

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

22147

Males

13246

M18-39

13246

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

20787

Males

12654

M18-39

12654

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

22601

Males

13405

M18-39

13405

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

23434

Males

13710

M18-39

13710

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

24394

Males

14087

M18-39

14087

20M→21M

20.0 - 21.0 mi

Top 89%
×8story building
+106ft-24ft

Overall

23602

Males

13714

M18-39

13714

21M→35K

21.0 - 21.8 mi

Top 89%
×7story building
+17ft-86ft

Overall

23817

Males

13748

M18-39

13748

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

23441

Males

13597

M18-39

13597

23M→24M

23.0 - 24.0 mi

Top 88%
×6story building
+12ft-82ft

Overall

23370

Males

13512

M18-39

13512

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

23264

Males

13436

M18-39

13436

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

23150

Males

13390

M18-39

13390

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2story building
+22ft-21ft

Overall

23977

Males

13804

M18-39

13804

Passing Analysis

Category:
Athletes Passed
1280
Passed By
1479
Net Change
-199
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22751
5K → 10K56866+502#22751#22249
10K → 15K190140+50#22249#22199
15K → 20K132128+4#22199#22195
20K → Half832+81#22195#22114
Half → 25K68186-118#22114#22232
25K → 30K51328-277#22232#22509
30K → 20M14216-202#22509#22711
20M → 21M2687-61#22711#22772
21M → 35K1376-63#22772#22835
35K → 23M4674-28#22835#22863
23M → 24M3134-3#22863#22866
24M → 40K3058-28#22866#22894
40K → 25.2M1120-9#22894#22903
25.2M → Finish1764-47#22903#22950
TOTALS12801479-199

Passing Charts

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