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BOSTON MARATHON 2023

Samuel Chege

Bib: 598•M

NY

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
18:46
Rank: #762
Start → 5K
18:46 | 6:02/mi
10K· 6.21 mi
37:00
Rank: #642 (+120)
5K → 10K
18:14 | 5:52/mi
15K· 9.32 mi
55:14
Rank: #581 (+61)
10K → 15K
18:14 | 5:52/mi
20K· 12.43 mi
1:13:40
Rank: #547 (+34)
15K → 20K
18:26 | 5:56/mi
Half· 13.11 mi
1:17:41
Rank: #541 (+6)
20K → Half
4:01 | 5:53/mi
25K· 15.53 mi
1:31:57
Rank: #509 (+32)
Half → 25K
14:16 | 5:53/mi
30K· 18.64 mi
1:50:38
Rank: #484 (+25)
25K → 30K
18:41 | 6:01/mi
20M
1:58:50
Rank: #463 (+21)
30K → 20M
8:12 | 6:02/mi
21M
2:05:28
Rank: #467 (-4)
20M → 21M
6:38 | 6:38/mi
35K· 21.75 mi
2:09:48
Rank: #463 (+4)
21M → 35K
4:20 | 5:48/mi
23M
2:17:27
Rank: #449 (+14)
35K → 23M
7:39 | 6:07/mi
24M
2:23:28
Rank: #457 (-8)
23M → 24M
6:01 | 6:01/mi
40K· 24.85 mi
2:28:54
Rank: #460 (-3)
24M → 40K
5:26 | 6:21/mi
25.2M
2:31:15
Rank: #460
40K → 25.2M
2:21 | 6:49/mi
Finish· 26.22 mi
2:37:44
Rank: #470 (-10)
25.2M → Finish
6:29 | 6:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:17:41
Pace5:56 /mi
2nd Half
Distance13.11 mi
Time1:20:03
Pace6:06 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:5318:466:0218:46
6:02
-
10K
6.21 mi10:37:0737:005:5718:14
5:52
-0:10
15K
9.32 mi10:55:2155:145:5618:14
5:52
0:00
20K
12.43 mi11:13:471:13:405:5618:26
5:56
+0:04
Half
13.11 mi11:17:481:17:415:564:01
5:53
-0:03
25K
15.53 mi11:32:041:31:575:5514:16
5:53
0:00
30K
18.64 mi11:50:451:50:385:5618:41
6:01
+0:08
20M
20.00 mi11:58:571:58:505:568:12
6:02
+0:01
21M
21.00 mi12:05:352:05:285:586:38
6:38
+0:36
35K
21.75 mi12:09:552:09:485:584:20
5:48
-0:50
23M
23.00 mi12:17:342:17:275:597:39
6:07
+0:19
24M
24.00 mi12:23:352:23:285:596:01
6:01
-0:06
40K
24.85 mi12:29:012:28:545:595:26
6:21
+0:20
25.2M
25.20 mi12:31:222:31:156:002:21
6:49
+0:28
Finish
26.22 mi12:37:512:37:446:016:29
6:22
-0:27

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

5:48 /mi

Average Pace

6:01 /mi

Slowest Pace

6:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:28:45

94% of race

Time at Steady Pace

8:59

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:01 /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 mi10:18:5318:466:0218:46
6:02
#762
10K
6.21 mi10:37:0737:005:5718:14
5:52
#642
15K
9.32 mi10:55:2155:145:5618:14
5:52
#581
20K
12.43 mi11:13:471:13:405:5618:26
5:56
#547
Half
13.11 mi11:17:481:17:415:564:01
5:53
#541
25K
15.53 mi11:32:041:31:575:5514:16
5:53
#509
30K
18.64 mi11:50:451:50:385:5618:41
6:01
#484
20M
20.00 mi11:58:571:58:505:568:12
6:02
#463
21M
21.00 mi12:05:352:05:285:586:38
6:38
#467
35K
21.75 mi12:09:552:09:485:584:20
5:48
#463
23M
23.00 mi12:17:342:17:275:597:39
6:07
#449
24M
24.00 mi12:23:352:23:285:596:01
6:01
#457
40K
24.85 mi12:29:012:28:545:595:26
6:21
#460
25.2M
25.20 mi12:31:222:31:156:002:21
6:49
#460
Finish
26.22 mi12:37:512:37:446:016:29
6:22
#470
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi762714714454(Top 2%)419(Top 3%)419(Top 8%)
10K6.21 mi3.10 mi642+120598+116598+116536(Top 2%)494(Top 3%)494(Top 9%)
15K9.32 mi3.11 mi581+61538+60538+60454(Top 2%)419(Top 3%)419(Top 8%)
20K12.43 mi3.11 mi547+34506+32506+32472(Top 2%)433(Top 3%)433(Top 8%)
Half13.11 mi0.68 mi541+6500+6500+6514(Top 2%)476(Top 3%)476(Top 9%)
25K15.53 mi2.42 mi509+32469+31469+31370(Top 1%)342(Top 2%)342(Top 6%)
30K18.64 mi3.11 mi484+25446+23446+23386(Top 1%)355(Top 2%)355(Top 7%)
20M20.00 mi1.36 mi463+21428+18428+18385(Top 1%)355(Top 2%)355(Top 7%)
21M21.00 mi1.00 mi467-4432-4432-4918(Top 3%)870(Top 6%)870(Top 16%)
35K21.75 mi0.75 mi463+4427+5427+5360(Top 1%)331(Top 2%)331(Top 6%)
23M23.00 mi1.25 mi449+14413+14413+14470(Top 2%)439(Top 3%)439(Top 8%)
24M24.00 mi1.00 mi457-8421-8421-8570(Top 2%)540(Top 4%)540(Top 10%)
40K24.85 mi0.85 mi460-3424-3424-31039(Top 4%)982(Top 6%)982(Top 19%)
25.2M25.20 mi0.35 mi4604244241143(Top 4%)1082(Top 7%)1082(Top 20%)
Finish26.22 mi1.02 mi470-10435-11435-111841(Top 7%)1719(Top 11%)1719(Top 33%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

454

Males

419

M18-39

419

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

536

Males

494

M18-39

494

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

454

Males

419

M18-39

419

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

472

Males

433

M18-39

433

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

514

Males

476

M18-39

476

Half→25K

13.1 - 15.5 mi

Top 1%
×4stories
+66ft-88ft

Overall

370

Males

342

M18-39

342

25K→30K

15.5 - 18.6 mi

Top 1%
×9stories
+181ft-148ft

Overall

386

Males

355

M18-39

355

30K→20M

18.6 - 20.0 mi

Top 1%
×5stories
+64ft-50ft

Overall

385

Males

355

M18-39

355

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

918

Males

870

M18-39

870

21M→35K

21.0 - 21.8 mi

Top 1%
×7stories
+17ft-86ft

Overall

360

Males

331

M18-39

331

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

470

Males

439

M18-39

439

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

570

Males

540

M18-39

540

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1039

Males

982

M18-39

982

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1143

Males

1082

M18-39

1082

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

1841

Males

1719

M18-39

1719

Passing Analysis

Category:
Athletes Passed
366
Passed By
74
Net Change
+292
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#762
5K → 10K1244+120#762#642
10K → 15K632+61#642#581
15K → 20K373+34#581#547
20K → Half60+6#547#541
Half → 25K342+32#541#509
25K → 30K3510+25#509#484
30K → 20M221+21#484#463
20M → 21M26-4#463#467
21M → 35K51+4#467#463
35K → 23M195+14#463#449
23M → 24M412-8#449#457
24M → 40K47-3#457#460
40K → 25.2M440#460#460
25.2M → Finish717-10#460#470
TOTALS36674+292
📊

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