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BOSTON MARATHON 2023

Eric Klein

Bib: 326•M

NV

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 2%
Gender (Male)
#0 / 15176
Top 3%
Division (M18-39)
#0 / 5285
Top 7%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:54
Rank: #344
Start → 5K
17:54 | 5:46/mi
10K· 6.21 mi
35:28
Rank: #313 (+31)
5K → 10K
17:34 | 5:39/mi
15K· 9.32 mi
53:19
Rank: #313
10K → 15K
17:51 | 5:45/mi
20K· 12.43 mi
1:11:50
Rank: #336 (-23)
15K → 20K
18:31 | 5:58/mi
Half· 13.11 mi
1:15:46
Rank: #336
20K → Half
3:56 | 5:46/mi
25K· 15.53 mi
1:30:30
Rank: #374 (-38)
Half → 25K
14:44 | 6:05/mi
30K· 18.64 mi
1:49:47
Rank: #400 (-26)
25K → 30K
19:17 | 6:12/mi
20M
1:58:19
Rank: #432 (-32)
30K → 20M
8:32 | 6:17/mi
21M
2:04:40
Rank: #427 (+5)
20M → 21M
6:21 | 6:21/mi
35K· 21.75 mi
2:09:10
Rank: #430 (-3)
21M → 35K
4:30 | 6:01/mi
23M
2:17:10
Rank: #440 (-10)
35K → 23M
8:00 | 6:23/mi
24M
2:23:29
Rank: #458 (-18)
23M → 24M
6:19 | 6:19/mi
40K· 24.85 mi
2:28:55
Rank: #462 (-4)
24M → 40K
5:26 | 6:21/mi
25.2M
2:31:15
Rank: #459 (+3)
40K → 25.2M
2:20 | 6:46/mi
Finish· 26.22 mi
2:37:31
Rank: #461 (-2)
25.2M → Finish
6:16 | 6:09/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:15:46
Pace5:47 /mi
2nd Half
Distance13.11 mi
Time1:21:45
Pace6:14 /mi
📊Positive Split: 7.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:5717:545:4617:54
5:46
-
10K
6.21 mi10:35:3135:285:4217:34
5:39
-0:07
15K
9.32 mi10:53:2253:195:4317:51
5:45
+0:06
20K
12.43 mi11:11:531:11:505:4718:31
5:58
+0:13
Half
13.11 mi11:15:491:15:465:473:56
5:46
-0:12
25K
15.53 mi11:30:331:30:305:5014:44
6:05
+0:19
30K
18.64 mi11:49:501:49:475:5319:17
6:12
+0:07
20M
20.00 mi11:58:221:58:195:558:32
6:17
+0:05
21M
21.00 mi12:04:432:04:405:566:21
6:21
+0:04
35K
21.75 mi12:09:132:09:105:564:30
6:01
-0:20
23M
23.00 mi12:17:132:17:105:588:00
6:23
+0:22
24M
24.00 mi12:23:322:23:295:596:19
6:19
-0:04
40K
24.85 mi12:28:582:28:555:595:26
6:21
+0:02
25.2M
25.20 mi12:31:182:31:156:002:20
6:46
+0:25
Finish
26.22 mi12:37:342:37:316:016:16
6:09
-0:37

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

5:39 /mi

Average Pace

6:01 /mi

Slowest Pace

6:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:33

77% of race

Time at Steady Pace

34:38

22% of race

Time at Slower Pace

2:20

1% of race

Average Pace: 6:00 /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 mi10:17:5717:545:4617:54
5:46
#344
10K
6.21 mi10:35:3135:285:4217:34
5:39
#313
15K
9.32 mi10:53:2253:195:4317:51
5:45
#313
20K
12.43 mi11:11:531:11:505:4718:31
5:58
#336
Half
13.11 mi11:15:491:15:465:473:56
5:46
#336
25K
15.53 mi11:30:331:30:305:5014:44
6:05
#374
30K
18.64 mi11:49:501:49:475:5319:17
6:12
#400
20M
20.00 mi11:58:221:58:195:558:32
6:17
#432
21M
21.00 mi12:04:432:04:405:566:21
6:21
#427
35K
21.75 mi12:09:132:09:105:564:30
6:01
#430
23M
23.00 mi12:17:132:17:105:588:00
6:23
#440
24M
24.00 mi12:23:322:23:295:596:19
6:19
#458
40K
24.85 mi12:28:582:28:555:595:26
6:21
#462
25.2M
25.20 mi12:31:182:31:156:002:20
6:46
#459
Finish
26.22 mi12:37:342:37:316:016:16
6:09
#461
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi344314314321(Top 1%)288(Top 2%)288(Top 5%)
10K6.21 mi3.10 mi313+31283+31283+31251(Top 0.9%)221(Top 1%)221(Top 4%)
15K9.32 mi3.11 mi313282+1282+1321(Top 1%)288(Top 2%)288(Top 5%)
20K12.43 mi3.11 mi336-23303-21303-21508(Top 2%)468(Top 3%)468(Top 9%)
Half13.11 mi0.68 mi336304-1304-1360(Top 1%)331(Top 2%)331(Top 6%)
25K15.53 mi2.42 mi374-38342-38342-38680(Top 3%)639(Top 4%)639(Top 12%)
30K18.64 mi3.11 mi400-26368-26368-26691(Top 3%)654(Top 4%)654(Top 12%)
20M20.00 mi1.36 mi432-32397-29397-29811(Top 3%)771(Top 5%)771(Top 15%)
21M21.00 mi1.00 mi427+5392+5392+5409(Top 2%)377(Top 2%)377(Top 7%)
35K21.75 mi0.75 mi430-3395-3395-3700(Top 3%)660(Top 4%)660(Top 12%)
23M23.00 mi1.25 mi440-10405-10405-101056(Top 4%)1001(Top 7%)1001(Top 19%)
24M24.00 mi1.00 mi458-18422-17422-171368(Top 5%)1294(Top 9%)1294(Top 24%)
40K24.85 mi0.85 mi462-4426-4426-41038(Top 4%)981(Top 6%)981(Top 19%)
25.2M25.20 mi0.35 mi459+3423+3423+31014(Top 4%)961(Top 6%)961(Top 18%)
Finish26.22 mi1.02 mi461-2426-3426-31109(Top 4%)1055(Top 7%)1055(Top 20%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1%
×21stories
+97ft-345ft

Overall

321

Males

288

M18-39

288

5K→10K

3.1 - 6.2 mi

Top 0.9%
×5stories
+79ft-138ft

Overall

251

Males

221

M18-39

221

10K→15K

6.2 - 9.3 mi

Top 1%
×3stories
+67ft-78ft

Overall

321

Males

288

M18-39

288

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

508

Males

468

M18-39

468

20K→Half

12.4 - 13.1 mi

Top 1%
×2stories
+19ft-37ft

Overall

360

Males

331

M18-39

331

Half→25K

13.1 - 15.5 mi

Top 3%
×4stories
+66ft-88ft

Overall

680

Males

639

M18-39

639

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

691

Males

654

M18-39

654

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

811

Males

771

M18-39

771

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

409

Males

377

M18-39

377

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

700

Males

660

M18-39

660

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1056

Males

1001

M18-39

1001

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1368

Males

1294

M18-39

1294

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1038

Males

981

M18-39

981

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1014

Males

961

M18-39

961

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1109

Males

1055

M18-39

1055

Passing Analysis

Category:
Athletes Passed
104
Passed By
221
Net Change
-117
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#344
5K → 10K376+31#344#313
10K → 15K10100#313#313
15K → 20K124-23#313#336
20K → Half220#336#336
Half → 25K644-38#336#374
25K → 30K733-26#374#400
30K → 20M234-32#400#432
20M → 21M83+5#432#427
21M → 35K36-3#427#430
35K → 23M616-10#430#440
23M → 24M321-18#440#458
24M → 40K48-4#458#462
40K → 25.2M52+3#462#459
25.2M → Finish1012-2#459#461
TOTALS104221-117
📊

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