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BOSTON MARATHON 2023

Carlos Lesser

Bib: 1525•M

BC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 1%
Gender (Male)
#0 / 15176
Top 2%
Division (M18-39)
#0 / 5285
Top 5%
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
5:47/mi
17:58
↑ 97↓ 3451.5%
10K· 6.21 mi
5:44/mi
35:47
↑ 79↓ 1380.4%
15K· 9.32 mi
5:49/mi
53:51
↑ 67↓ 78
20K· 12.43 mi
5:52/mi
1:12:06
↑ 106↓ 860.1%
Half· 13.11 mi
5:43/mi
1:16:00
↑ 19↓ 370.5%
25K· 15.53 mi
5:54/mi
1:30:19
↑ 66↓ 880.2%
30K· 18.64 mi
6:08/mi
1:49:21
↑ 181↓ 1480.2%
20M
6:04/mi
1:57:36
↑ 64↓ 500.2%
21M
6:31/mi
2:04:07
↑ 106↓ 241.6%
35K· 21.75 mi
5:44/mi
2:08:24
↑ 17↓ 861.7%
23M
5:57/mi
2:15:51
↑ 23↓ 630.6%
24M
5:44/mi
2:21:35
↓ 821.3%
40K· 24.85 mi
6:06/mi
2:26:48
↓ 200.3%
25.2M
6:40/mi
2:29:06
↑ 13↓ 160.2%
Finish· 26.22 mi
5:56/mi
2:35:09
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:16:00
Pace5:48 /mi
2nd Half
Distance13.11 mi
Time1:19:09
Pace6:02 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:1517:585:4717:58
5:47
-
10K
6.21 mi10:36:0435:475:4617:49
5:44
-0:03
15K
9.32 mi10:54:0853:515:4718:04
5:49
+0:05
20K
12.43 mi11:12:231:12:065:4818:15
5:52
+0:03
Half
13.11 mi11:16:171:16:005:483:54
5:43
-0:09
25K
15.53 mi11:30:361:30:195:4914:19
5:54
+0:11
30K
18.64 mi11:49:381:49:215:5219:02
6:08
+0:14
20M
20.00 mi11:57:531:57:365:538:15
6:04
-0:04
21M
21.00 mi12:04:242:04:075:556:31
6:31
+0:27
35K
21.75 mi12:08:412:08:245:544:17
5:44
-0:47
23M
23.00 mi12:16:082:15:515:547:27
5:57
+0:13
24M
24.00 mi12:21:522:21:355:545:44
5:44
-0:13
40K
24.85 mi12:27:052:26:485:545:13
6:06
+0:22
25.2M
25.20 mi12:29:232:29:065:552:18
6:40
+0:34
Finish
26.22 mi12:35:262:35:095:556:03
5:56
-0:44

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

5:43 /mi

Average Pace

5:55 /mi

Slowest Pace

6:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:26:20

94% of race

Time at Steady Pace

8:49

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:55 /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 mi10:18:1517:585:4717:58
5:47
#367
10K
6.21 mi10:36:0435:475:4617:49
5:44
#363
15K
9.32 mi10:54:0853:515:4718:04
5:49
#365
20K
12.43 mi11:12:231:12:065:4818:15
5:52
#362
Half
13.11 mi11:16:171:16:005:483:54
5:43
#361
25K
15.53 mi11:30:361:30:195:4914:19
5:54
#357
30K
18.64 mi11:49:381:49:215:5219:02
6:08
#377
20M
20.00 mi11:57:531:57:365:538:15
6:04
#373
21M
21.00 mi12:04:242:04:075:556:31
6:31
#382
35K
21.75 mi12:08:412:08:245:544:17
5:44
#376
23M
23.00 mi12:16:082:15:515:547:27
5:57
#360
24M
24.00 mi12:21:522:21:355:545:44
5:44
#345
40K
24.85 mi12:27:052:26:485:545:13
6:06
#342
25.2M
25.20 mi12:29:232:29:065:552:18
6:40
#339
Finish
26.22 mi12:35:262:35:095:556:03
5:56
#330
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi367333333383(Top 1%)349(Top 2%)349(Top 7%)
10K6.21 mi3.10 mi363+4328+5328+5353(Top 1%)318(Top 2%)318(Top 6%)
15K9.32 mi3.11 mi365-2331-3331-3383(Top 1%)349(Top 2%)349(Top 7%)
20K12.43 mi3.11 mi362+3329+2329+2390(Top 1%)357(Top 2%)357(Top 7%)
Half13.11 mi0.68 mi361+1328+1328+1296(Top 1%)272(Top 2%)272(Top 5%)
25K15.53 mi2.42 mi357+4325+3325+3391(Top 1%)362(Top 2%)362(Top 7%)
30K18.64 mi3.11 mi377-20345-20345-20541(Top 2%)507(Top 3%)507(Top 10%)
20M20.00 mi1.36 mi373+4341+4341+4435(Top 2%)401(Top 3%)401(Top 8%)
21M21.00 mi1.00 mi382-9350-9350-9665(Top 2%)626(Top 4%)626(Top 12%)
35K21.75 mi0.75 mi376+6344+6344+6264(Top 1.0%)239(Top 2%)239(Top 5%)
23M23.00 mi1.25 mi360+16329+15329+15262(Top 1.0%)237(Top 2%)237(Top 4%)
24M24.00 mi1.00 mi345+15314+15314+15191(Top 0.7%)168(Top 1%)168(Top 3%)
40K24.85 mi0.85 mi342+3310+4310+4477(Top 2%)448(Top 3%)448(Top 8%)
25.2M25.20 mi0.35 mi339+3307+3307+3773(Top 3%)734(Top 5%)734(Top 14%)
Finish26.22 mi1.02 mi330+9299+8299+8581(Top 2%)552(Top 4%)552(Top 10%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1%
×21story building
+97ft-345ft

Overall

383

Males

349

M18-39

349

5K→10K

3.1 - 6.2 mi

Top 1%
×5story building
+79ft-138ft

Overall

353

Males

318

M18-39

318

10K→15K

6.2 - 9.3 mi

Top 1%
×3story building
+67ft-78ft

Overall

383

Males

349

M18-39

349

15K→20K

9.3 - 12.4 mi

Top 1%
×5story building
+106ft-86ft

Overall

390

Males

357

M18-39

357

20K→Half

12.4 - 13.1 mi

Top 1%
×2story building
+19ft-37ft

Overall

296

Males

272

M18-39

272

Half→25K

13.1 - 15.5 mi

Top 1%
×4story building
+66ft-88ft

Overall

391

Males

362

M18-39

362

25K→30K

15.5 - 18.6 mi

Top 2%
×9story building
+181ft-148ft

Overall

541

Males

507

M18-39

507

30K→20M

18.6 - 20.0 mi

Top 2%
×5story building
+64ft-50ft

Overall

435

Males

401

M18-39

401

20M→21M

20.0 - 21.0 mi

Top 2%
×8story building
+106ft-24ft

Overall

665

Males

626

M18-39

626

21M→35K

21.0 - 21.8 mi

Top 1.0%
×7story building
+17ft-86ft

Overall

264

Males

239

M18-39

239

35K→23M

21.8 - 23.0 mi

Top 1.0%
×5story building
+23ft-63ft

Overall

262

Males

237

M18-39

237

23M→24M

23.0 - 24.0 mi

Top 0.7%
×6story building
+12ft-82ft

Overall

191

Males

168

M18-39

168

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

477

Males

448

M18-39

448

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

773

Males

734

M18-39

734

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2story building
+22ft-21ft

Overall

581

Males

552

M18-39

552

Passing Analysis

Category:
Athletes Passed
139
Passed By
102
Net Change
+37
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#367
5K → 10K2016+4#367#363
10K → 15K1214-2#363#365
15K → 20K118+3#365#362
20K → Half32+1#362#361
Half → 25K128+4#361#357
25K → 30K1030-20#357#377
30K → 20M73+4#377#373
20M → 21M312-9#373#382
21M → 35K60+6#382#376
35K → 23M182+16#376#360
23M → 24M161+15#360#345
24M → 40K63+3#345#342
40K → 25.2M30+3#342#339
25.2M → Finish123+9#339#330
TOTALS139102+37
📊

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