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BOSTON MARATHON 2023

Reid Larson

Bib: 30746•M

MA

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

Start
0:00:00
Race begins
5K· 3.11 mi
31:24
Rank: #23693
Start → 5K
31:24 | 10:06/mi
10K· 6.21 mi
1:03:57
Rank: #24245 (-552)
5K → 10K
32:33 | 10:29/mi
15K· 9.32 mi
1:36:59
Rank: #24443 (-198)
10K → 15K
33:02 | 10:38/mi
20K· 12.43 mi
2:09:30
Rank: #24269 (+174)
15K → 20K
32:31 | 10:28/mi
Half· 13.11 mi
2:17:25
Rank: #24374 (-105)
20K → Half
7:55 | 11:36/mi
25K· 15.53 mi
2:41:42
Rank: #23985 (+389)
Half → 25K
24:17 | 10:01/mi
30K· 18.64 mi
3:10:49
Rank: #23322 (+663)
25K → 30K
29:07 | 9:22/mi
20M
3:22:43
Rank: #22939 (+383)
30K → 20M
11:54 | 8:45/mi
21M
3:32:06
Rank: #22662 (+277)
20M → 21M
9:23 | 9:23/mi
35K· 21.75 mi
3:38:57
Rank: #22527 (+135)
21M → 35K
6:51 | 9:09/mi
23M
3:50:48
Rank: #22330 (+197)
35K → 23M
11:51 | 9:28/mi
24M
3:59:54
Rank: #22170 (+160)
23M → 24M
9:06 | 9:06/mi
40K· 24.85 mi
4:07:44
Rank: #22021 (+149)
24M → 40K
7:50 | 9:10/mi
25.2M
4:11:19
Rank: #21980 (+41)
40K → 25.2M
3:35 | 10:23/mi
Finish· 26.22 mi
4:19:28
Rank: #21789 (+191)
25.2M → Finish
8:09 | 8:00/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:17:25
Pace10:29 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:02:03
Pace9:19 /mi
📊Negative Split: 11.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:0731:2410:0631:24
10:06
-
10K
6.21 mi12:26:401:03:5710:1832:33
10:29
+0:23
15K
9.32 mi12:59:421:36:5910:2433:02
10:38
+0:09
20K
12.43 mi13:32:132:09:3010:2532:31
10:28
-0:10
Half
13.11 mi13:40:082:17:2510:297:55
11:36
+1:08
25K
15.53 mi14:04:252:41:4210:2524:17
10:01
-1:35
30K
18.64 mi14:33:323:10:4910:1429:07
9:22
-0:39
20M
20.00 mi14:45:263:22:4310:0811:54
8:45
-0:37
21M
21.00 mi14:54:493:32:0610:069:23
9:23
+0:38
35K
21.75 mi15:01:403:38:5710:046:51
9:09
-0:14
23M
23.00 mi15:13:313:50:4810:0211:51
9:28
+0:19
24M
24.00 mi15:22:373:59:5410:009:06
9:06
-0:22
40K
24.85 mi15:30:274:07:449:587:50
9:10
+0:04
25.2M
25.20 mi15:34:024:11:199:583:35
10:23
+1:13
Finish
26.22 mi15:42:114:19:289:548:09
8:00
-2:23

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

8:00 /mi

Average Pace

9:54 /mi

Slowest Pace

11:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

20:03

8% of race

Time at Steady Pace

1:14:08

29% of race

Time at Slower Pace

2:45:17

64% of race

Average Pace: 9:54 /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 mi11:54:0731:2410:0631:24
10:06
#23693
10K
6.21 mi12:26:401:03:5710:1832:33
10:29
#24245
15K
9.32 mi12:59:421:36:5910:2433:02
10:38
#24443
20K
12.43 mi13:32:132:09:3010:2532:31
10:28
#24269
Half
13.11 mi13:40:082:17:2510:297:55
11:36
#24374
25K
15.53 mi14:04:252:41:4210:2524:17
10:01
#23985
30K
18.64 mi14:33:323:10:4910:1429:07
9:22
#23322
20M
20.00 mi14:45:263:22:4310:0811:54
8:45
#22939
21M
21.00 mi14:54:493:32:0610:069:23
9:23
#22662
35K
21.75 mi15:01:403:38:5710:046:51
9:09
#22527
23M
23.00 mi15:13:313:50:4810:0211:51
9:28
#22330
24M
24.00 mi15:22:373:59:5410:009:06
9:06
#22170
40K
24.85 mi15:30:274:07:449:587:50
9:10
#22021
25.2M
25.20 mi15:34:024:11:199:583:35
10:23
#21980
Finish
26.22 mi15:42:114:19:289:548:09
8:00
#21789
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi23693139251392524682(Top 93%)14376(Top 95%)14376(Top 272%)
10K6.21 mi3.10 mi24245-55214201-27614201-27624638(Top 93%)14370(Top 95%)14370(Top 272%)
15K9.32 mi3.11 mi24443-19814292-9114292-9124682(Top 93%)14376(Top 95%)14376(Top 272%)
20K12.43 mi3.11 mi24269+17414203+8914203+8923780(Top 89%)13965(Top 92%)13965(Top 264%)
Half13.11 mi0.68 mi24374-10514244-4114244-4125560(Top 96%)14714(Top 97%)14714(Top 278%)
25K15.53 mi2.42 mi23985+38914074+17014074+17022240(Top 84%)13251(Top 87%)13251(Top 251%)
30K18.64 mi3.11 mi23322+66313748+32613748+32618903(Top 71%)11740(Top 77%)11740(Top 222%)
20M20.00 mi1.36 mi22939+38313551+19713551+19715193(Top 57%)10073(Top 66%)10073(Top 191%)
21M21.00 mi1.00 mi22662+27713408+14313408+14315397(Top 58%)10104(Top 67%)10104(Top 191%)
35K21.75 mi0.75 mi22527+13513349+5913349+5918565(Top 70%)11407(Top 75%)11407(Top 216%)
23M23.00 mi1.25 mi22330+19713249+10013249+10018186(Top 68%)11204(Top 74%)11204(Top 212%)
24M24.00 mi1.00 mi22170+16013172+7713172+7717671(Top 66%)10929(Top 72%)10929(Top 207%)
40K24.85 mi0.85 mi22021+14913102+7013102+7016921(Top 64%)10557(Top 70%)10557(Top 200%)
25.2M25.20 mi0.35 mi21980+4113077+2513077+2518740(Top 70%)11368(Top 75%)11368(Top 215%)
Finish26.22 mi1.02 mi21789+19112981+9612981+9612121(Top 46%)8356(Top 55%)8356(Top 158%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21stories
+97ft-345ft

Overall

24682

Males

14376

M18-39

14376

5K→10K

3.1 - 6.2 mi

Top 93%
×5stories
+79ft-138ft

Overall

24638

Males

14370

M18-39

14370

10K→15K

6.2 - 9.3 mi

Top 93%
×3stories
+67ft-78ft

Overall

24682

Males

14376

M18-39

14376

15K→20K

9.3 - 12.4 mi

Top 89%
×5stories
+106ft-86ft

Overall

23780

Males

13965

M18-39

13965

20K→Half

12.4 - 13.1 mi

Top 96%
×2stories
+19ft-37ft

Overall

25560

Males

14714

M18-39

14714

Half→25K

13.1 - 15.5 mi

Top 84%
×4stories
+66ft-88ft

Overall

22240

Males

13251

M18-39

13251

25K→30K

15.5 - 18.6 mi

Top 71%
×9stories
+181ft-148ft

Overall

18903

Males

11740

M18-39

11740

30K→20M

18.6 - 20.0 mi

Top 57%
×5stories
+64ft-50ft

Overall

15193

Males

10073

M18-39

10073

20M→21M

20.0 - 21.0 mi

Top 58%
×8stories
+106ft-24ft

Overall

15397

Males

10104

M18-39

10104

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

18565

Males

11407

M18-39

11407

35K→23M

21.8 - 23.0 mi

Top 68%
×5stories
+23ft-63ft

Overall

18186

Males

11204

M18-39

11204

23M→24M

23.0 - 24.0 mi

Top 66%
×6stories
+12ft-82ft

Overall

17671

Males

10929

M18-39

10929

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

16921

Males

10557

M18-39

10557

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

18740

Males

11368

M18-39

11368

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2stories
+22ft-21ft

Overall

12121

Males

8356

M18-39

8356

Passing Analysis

Category:
Athletes Passed
2887
Passed By
983
Net Change
+1904
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23693
5K → 10K32584-552#23693#24245
10K → 15K62260-198#24245#24443
15K → 20K19622+174#24443#24269
20K → Half7112-105#24269#24374
Half → 25K3890+389#24374#23985
25K → 30K6630+663#23985#23322
30K → 20M3830+383#23322#22939
20M → 21M2770+277#22939#22662
21M → 35K1372+135#22662#22527
35K → 23M1981+197#22527#22330
23M → 24M1600+160#22330#22170
24M → 40K1501+149#22170#22021
40K → 25.2M421+41#22021#21980
25.2M → Finish1910+191#21980#21789
TOTALS2887983+1904
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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