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BOSTON MARATHON 2023

Martin Klein

Bib: 31576•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
10:05/mi
31:21
↑ 97↓ 3451.5%
10K· 6.21 mi
10:19/mi
1:03:24
↑ 79↓ 1380.4%
15K· 9.32 mi
10:36/mi
1:36:20
↑ 67↓ 78
20K· 12.43 mi
12:10/mi
2:14:07
↑ 106↓ 860.1%
Half· 13.11 mi
10:51/mi
2:21:31
↑ 19↓ 370.5%
25K· 15.53 mi
11:02/mi
2:48:16
↑ 66↓ 880.2%
30K· 18.64 mi
11:35/mi
3:24:14
↑ 181↓ 1480.2%
20M
13:00/mi
3:41:54
↑ 64↓ 500.2%
21M
12:56/mi
3:54:50
↑ 106↓ 241.6%
35K· 21.75 mi
11:28/mi
4:03:25
↑ 17↓ 861.7%
23M
11:49/mi
4:18:13
↑ 23↓ 630.6%
24M
11:40/mi
4:29:53
↓ 821.3%
40K· 24.85 mi
12:03/mi
4:40:11
↓ 200.3%
25.2M
11:59/mi
4:44:19
↑ 13↓ 160.2%
Finish· 26.22 mi
10:41/mi
4:55:12
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:21:31
Pace10:48 /mi
2nd Half
Distance13.11 mi
Time2:33:41
Pace11:43 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:5931:2110:0531:21
10:05
-
10K
6.21 mi12:25:021:03:2410:1232:03
10:19
+0:14
15K
9.32 mi12:57:581:36:2010:2032:56
10:36
+0:17
20K
12.43 mi13:35:452:14:0710:4837:47
12:10
+1:34
Half
13.11 mi13:43:092:21:3110:487:24
10:51
-1:19
25K
15.53 mi14:09:542:48:1610:5026:45
11:02
+0:11
30K
18.64 mi14:45:523:24:1410:5735:58
11:35
+0:33
20M
20.00 mi15:03:323:41:5411:0617:40
13:00
+1:25
21M
21.00 mi15:16:283:54:5011:1112:56
12:56
-0:04
35K
21.75 mi15:25:034:03:2511:128:35
11:28
-1:28
23M
23.00 mi15:39:514:18:1311:1414:48
11:49
+0:21
24M
24.00 mi15:51:314:29:5311:1511:40
11:40
-0:09
40K
24.85 mi16:01:494:40:1111:1610:18
12:03
+0:23
25.2M
25.20 mi16:05:574:44:1911:174:08
11:59
-0:04
Finish
26.22 mi16:16:504:55:1211:1610:53
10:41
-1:18

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

10:05 /mi

Average Pace

11:16 /mi

Slowest Pace

13:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:21:22

48% of race

Time at Steady Pace

1:15:09

25% of race

Time at Slower Pace

1:18:41

27% of race

Average Pace: 11:16 /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 mi11:52:5931:2110:0531:21
10:05
#23662
10K
6.21 mi12:25:021:03:2410:1232:03
10:19
#24063
15K
9.32 mi12:57:581:36:2010:2032:56
10:36
#24298
20K
12.43 mi13:35:452:14:0710:4837:47
12:10
#24910
Half
13.11 mi13:43:092:21:3110:487:24
10:51
#24903
25K
15.53 mi14:09:542:48:1610:5026:45
11:02
#24750
30K
18.64 mi14:45:523:24:1410:5735:58
11:35
#24596
20M
20.00 mi15:03:323:41:5411:0617:40
13:00
#24679
21M
21.00 mi15:16:283:54:5011:1112:56
12:56
#24669
35K
21.75 mi15:25:034:03:2511:128:35
11:28
#24644
23M
23.00 mi15:39:514:18:1311:1414:48
11:49
#24591
24M
24.00 mi15:51:314:29:5311:1511:40
11:40
#24573
40K
24.85 mi16:01:494:40:1111:1610:18
12:03
#24569
25.2M
25.20 mi16:05:574:44:1911:174:08
11:59
#24541
Finish
26.22 mi16:16:504:55:1211:1610:53
10:41
#24513
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi23662139091390924631(Top 93%)14361(Top 95%)14361(Top 1294%)
10K6.21 mi3.10 mi24063-40114113-20414113-20424331(Top 91%)14231(Top 94%)14231(Top 1282%)
15K9.32 mi3.11 mi24298-23514223-11014223-11024631(Top 93%)14361(Top 95%)14361(Top 1294%)
20K12.43 mi3.11 mi24910-61214483-26014483-26025743(Top 97%)14805(Top 98%)14805(Top 1334%)
Half13.11 mi0.68 mi24903+714477+614477+624727(Top 93%)14369(Top 95%)14369(Top 1295%)
25K15.53 mi2.42 mi24750+15314399+7814399+7824028(Top 90%)14040(Top 93%)14040(Top 1265%)
30K18.64 mi3.11 mi24596+15414318+8114318+8123962(Top 90%)13946(Top 92%)13946(Top 1256%)
20M20.00 mi1.36 mi24679-8314345-2714345-2725169(Top 95%)14464(Top 95%)14464(Top 1303%)
21M21.00 mi1.00 mi24669+1014338+714338+724006(Top 90%)13895(Top 92%)13895(Top 1252%)
35K21.75 mi0.75 mi24644+2514316+2214316+2224055(Top 90%)13879(Top 91%)13879(Top 1250%)
23M23.00 mi1.25 mi24591+5314287+2914287+2923750(Top 89%)13749(Top 91%)13749(Top 1239%)
24M24.00 mi1.00 mi24573+1814264+2314264+2324100(Top 91%)13866(Top 91%)13866(Top 1249%)
40K24.85 mi0.85 mi24569+414255+914255+923946(Top 90%)13772(Top 91%)13772(Top 1241%)
25.2M25.20 mi0.35 mi24541+2814240+1514240+1522476(Top 84%)13078(Top 86%)13078(Top 1178%)
Finish26.22 mi1.02 mi24513+2814219+2114219+2123380(Top 88%)13512(Top 89%)13512(Top 1217%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21story building
+97ft-345ft

Overall

24631

Males

14361

M60-64

14361

5K→10K

3.1 - 6.2 mi

Top 91%
×5story building
+79ft-138ft

Overall

24331

Males

14231

M60-64

14231

10K→15K

6.2 - 9.3 mi

Top 93%
×3story building
+67ft-78ft

Overall

24631

Males

14361

M60-64

14361

15K→20K

9.3 - 12.4 mi

Top 97%
×5story building
+106ft-86ft

Overall

25743

Males

14805

M60-64

14805

20K→Half

12.4 - 13.1 mi

Top 93%
×2story building
+19ft-37ft

Overall

24727

Males

14369

M60-64

14369

Half→25K

13.1 - 15.5 mi

Top 90%
×4story building
+66ft-88ft

Overall

24028

Males

14040

M60-64

14040

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

23962

Males

13946

M60-64

13946

30K→20M

18.6 - 20.0 mi

Top 95%
×5story building
+64ft-50ft

Overall

25169

Males

14464

M60-64

14464

20M→21M

20.0 - 21.0 mi

Top 90%
×8story building
+106ft-24ft

Overall

24006

Males

13895

M60-64

13895

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

24055

Males

13879

M60-64

13879

35K→23M

21.8 - 23.0 mi

Top 89%
×5story building
+23ft-63ft

Overall

23750

Males

13749

M60-64

13749

23M→24M

23.0 - 24.0 mi

Top 91%
×6story building
+12ft-82ft

Overall

24100

Males

13866

M60-64

13866

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

23946

Males

13772

M60-64

13772

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

22476

Males

13078

M60-64

13078

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2story building
+22ft-21ft

Overall

23380

Males

13512

M60-64

13512

Passing Analysis

Category:
Athletes Passed
776
Passed By
1627
Net Change
-851
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23662
5K → 10K56457-401#23662#24063
10K → 15K45280-235#24063#24298
15K → 20K4616-612#24298#24910
20K → Half2316+7#24910#24903
Half → 25K16714+153#24903#24750
25K → 30K18127+154#24750#24596
30K → 20M21104-83#24596#24679
20M → 21M3121+10#24679#24669
21M → 35K3611+25#24669#24644
35K → 23M7623+53#24644#24591
23M → 24M3921+18#24591#24573
24M → 40K2723+4#24573#24569
40K → 25.2M302+28#24569#24541
25.2M → Finish4012+28#24541#24513
TOTALS7761627-851
📊

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