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BOSTON MARATHON 2023

Juan Perez

Bib: 1007•M

FL

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0:00
0:00
/ mi
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Overall
#0 / 26622
Top 1%
Gender (Male)
#0 / 15176
Top 2%
Age Group (M18-39)
#0 / 5285
Top 4%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
18:04
Rank: #407
Start → 5K
18:04 | 5:49/mi
10K· 6.21 mi
35:55
Rank: #385 (+22)
5K → 10K
17:51 | 5:45/mi
15K· 9.32 mi
53:51
Rank: #364 (+21)
10K → 15K
17:56 | 5:46/mi
20K· 12.43 mi
1:12:00
Rank: #355 (+9)
15K → 20K
18:09 | 5:51/mi
Half· 13.11 mi
1:15:52
Rank: #349 (+6)
20K → Half
3:52 | 5:40/mi
25K· 15.53 mi
1:29:48
Rank: #317 (+32)
Half → 25K
13:56 | 5:45/mi
30K· 18.64 mi
1:47:59
Rank: #300 (+17)
25K → 30K
18:11 | 5:51/mi
20M
1:56:01
Rank: #295 (+5)
30K → 20M
8:02 | 5:55/mi
21M
2:02:24
Rank: #297 (-2)
20M → 21M
6:23 | 6:23/mi
35K· 21.75 mi
2:06:44
Rank: #290 (+7)
21M → 35K
4:20 | 5:48/mi
23M
2:14:17
Rank: #283 (+7)
35K → 23M
7:33 | 6:02/mi
24M
2:20:13
Rank: #277 (+6)
23M → 24M
5:56 | 5:56/mi
40K· 24.85 mi
2:25:23
Rank: #271 (+6)
24M → 40K
5:10 | 6:03/mi
25.2M
2:27:42
Rank: #272 (-1)
40K → 25.2M
2:19 | 6:43/mi
Finish· 26.22 mi
2:33:43
Rank: #267 (+5)
25.2M → Finish
6:01 | 5:54/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.11 mi
Time1:15:52
Pace5:47 /mi
2nd Half
Distance13.11 mi
Time1:17:51
Pace5:56 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:2218:045:4918:04
5:49
-
10K
6.21 mi10:36:1335:555:4717:51
5:45
-0:04
15K
9.32 mi10:54:0953:515:4717:56
5:46
+0:01
20K
12.43 mi11:12:181:12:005:4818:09
5:51
+0:05
Half
13.11 mi11:16:101:15:525:473:52
5:40
-0:11
25K
15.53 mi11:30:061:29:485:4713:56
5:45
+0:05
30K
18.64 mi11:48:171:47:595:4818:11
5:51
+0:06
20M
20.00 mi11:56:191:56:015:488:02
5:55
+0:04
21M
21.00 mi12:02:422:02:245:506:23
6:23
+0:28
35K
21.75 mi12:07:022:06:445:504:20
5:48
-0:35
23M
23.00 mi12:14:352:14:175:507:33
6:02
+0:14
24M
24.00 mi12:20:312:20:135:515:56
5:56
-0:06
40K
24.85 mi12:25:412:25:235:515:10
6:03
+0:07
25.2M
25.20 mi12:28:002:27:425:522:19
6:43
+0:40
Finish
26.22 mi12:34:012:33:435:526:01
5:54
-0:49

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

5:40 /mi

Average Pace

5:52 /mi

Slowest Pace

6:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:25:01

94% of race

Time at Steady Pace

6:23

4% of race

Time at Slower Pace

2:19

2% of race

Average Pace: 5:52 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:18:2218:045:4918:04
5:49
#407
10K
6.21 mi10:36:1335:555:4717:51
5:45
#385
15K
9.32 mi10:54:0953:515:4717:56
5:46
#364
20K
12.43 mi11:12:181:12:005:4818:09
5:51
#355
Half
13.11 mi11:16:101:15:525:473:52
5:40
#349
25K
15.53 mi11:30:061:29:485:4713:56
5:45
#317
30K
18.64 mi11:48:171:47:595:4818:11
5:51
#300
20M
20.00 mi11:56:191:56:015:488:02
5:55
#295
21M
21.00 mi12:02:422:02:245:506:23
6:23
#297
35K
21.75 mi12:07:022:06:445:504:20
5:48
#290
23M
23.00 mi12:14:352:14:175:507:33
6:02
#283
24M
24.00 mi12:20:312:20:135:515:56
5:56
#277
40K
24.85 mi12:25:412:25:235:515:10
6:03
#271
25.2M
25.20 mi12:28:002:27:425:522:19
6:43
#272
Finish
26.22 mi12:34:012:33:435:526:01
5:54
#267
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi407372372343(Top 1%)310(Top 2%)310(Top 6%)
10K6.21 mi3.10 mi385+22350+22350+22369(Top 1%)334(Top 2%)334(Top 6%)
15K9.32 mi3.11 mi364+21330+20330+20343(Top 1%)310(Top 2%)310(Top 6%)
20K12.43 mi3.11 mi355+9322+8322+8346(Top 1%)314(Top 2%)314(Top 6%)
Half13.11 mi0.68 mi349+6317+5317+5248(Top 0.9%)226(Top 1%)226(Top 4%)
25K15.53 mi2.42 mi317+32285+32285+32213(Top 0.8%)190(Top 1%)190(Top 4%)
30K18.64 mi3.11 mi300+17268+17268+17197(Top 0.7%)174(Top 1%)174(Top 3%)
20M20.00 mi1.36 mi295+5264+4264+4261(Top 1.0%)237(Top 2%)237(Top 4%)
21M21.00 mi1.00 mi297-2266-2266-2451(Top 2%)418(Top 3%)418(Top 8%)
35K21.75 mi0.75 mi290+7260+6260+6348(Top 1%)319(Top 2%)319(Top 6%)
23M23.00 mi1.25 mi283+7255+5255+5331(Top 1%)305(Top 2%)305(Top 6%)
24M24.00 mi1.00 mi277+6249+6249+6423(Top 2%)396(Top 3%)396(Top 7%)
40K24.85 mi0.85 mi271+6243+6243+6388(Top 1%)363(Top 2%)363(Top 7%)
25.2M25.20 mi0.35 mi272-1244-1244-1887(Top 3%)843(Top 6%)843(Top 16%)
Finish26.22 mi1.02 mi267+5241+3241+3520(Top 2%)494(Top 3%)494(Top 9%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1%
×21stories
+97ft-345ft

Overall

343

Males

310

M18-39

310

5K→10K

3.1 - 6.2 mi

Top 1%
×5stories
+79ft-138ft

Overall

369

Males

334

M18-39

334

10K→15K

6.2 - 9.3 mi

Top 1%
×3stories
+67ft-78ft

Overall

343

Males

310

M18-39

310

15K→20K

9.3 - 12.4 mi

Top 1%
×5stories
+106ft-86ft

Overall

346

Males

314

M18-39

314

20K→Half

12.4 - 13.1 mi

Top 0.9%
×2stories
+19ft-37ft

Overall

248

Males

226

M18-39

226

Half→25K

13.1 - 15.5 mi

Top 0.8%
×4stories
+66ft-88ft

Overall

213

Males

190

M18-39

190

25K→30K

15.5 - 18.6 mi

Top 0.7%
×9stories
+181ft-148ft

Overall

197

Males

174

M18-39

174

30K→20M

18.6 - 20.0 mi

Top 1.0%
×5stories
+64ft-50ft

Overall

261

Males

237

M18-39

237

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

451

Males

418

M18-39

418

21M→35K

21.0 - 21.8 mi

Top 1%
×7stories
+17ft-86ft

Overall

348

Males

319

M18-39

319

35K→23M

21.8 - 23.0 mi

Top 1%
×5stories
+23ft-63ft

Overall

331

Males

305

M18-39

305

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

423

Males

396

M18-39

396

24M→40K

24.0 - 24.9 mi

Top 1%
×1story
+6ft-20ft

Overall

388

Males

363

M18-39

363

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

887

Males

843

M18-39

843

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

520

Males

494

M18-39

494

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
188
Passed By
48
Net Change
+140
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#407
5K → 10K319+22#407#385
10K → 15K232+21#385#364
15K → 20K145+9#364#355
20K → Half60+6#355#349
Half → 25K320+32#349#317
25K → 30K203+17#317#300
30K → 20M94+5#300#295
20M → 21M68-2#295#297
21M → 35K70+7#297#290
35K → 23M114+7#290#283
23M → 24M71+6#283#277
24M → 40K82+6#277#271
40K → 25.2M45-1#271#272
25.2M → Finish105+5#272#267
TOTALS18848+140
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing