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BOSTON MARATHON 2023

Alex Kramer

Bib: 2598•M

MA

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

Start
0:00:00
Race begins
5K· 3.11 mi
18:28
Rank: #605
Start → 5K
18:28 | 5:57/mi
10K· 6.21 mi
36:25
Rank: #482 (+123)
5K → 10K
17:57 | 5:47/mi
15K· 9.32 mi
54:36
Rank: #457 (+25)
10K → 15K
18:11 | 5:51/mi
20K· 12.43 mi
1:12:57
Rank: #442 (+15)
15K → 20K
18:21 | 5:54/mi
Half· 13.11 mi
1:16:58
Rank: #444 (-2)
20K → Half
4:01 | 5:53/mi
25K· 15.53 mi
1:31:21
Rank: #442 (+2)
Half → 25K
14:23 | 5:56/mi
30K· 18.64 mi
1:49:49
Rank: #403 (+39)
25K → 30K
18:28 | 5:57/mi
20M
1:57:50
Rank: #384 (+19)
30K → 20M
8:01 | 5:54/mi
21M
2:04:00
Rank: #379 (+5)
20M → 21M
6:10 | 6:10/mi
35K· 21.75 mi
2:08:18
Rank: #372 (+7)
21M → 35K
4:18 | 5:45/mi
23M
2:15:41
Rank: #349 (+23)
35K → 23M
7:23 | 5:54/mi
24M
2:21:26
Rank: #338 (+11)
23M → 24M
5:45 | 5:45/mi
40K· 24.85 mi
2:26:30
Rank: #327 (+11)
24M → 40K
5:04 | 5:56/mi
25.2M
2:28:40
Rank: #320 (+7)
40K → 25.2M
2:10 | 6:17/mi
Finish· 26.22 mi
2:34:46
Rank: #319 (+1)
25.2M → Finish
6:06 | 5:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:16:58
Pace5:52 /mi
2nd Half
Distance13.11 mi
Time1:17:48
Pace5:56 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:5918:285:5718:28
5:57
-
10K
6.21 mi10:36:5636:255:5217:57
5:47
-0:10
15K
9.32 mi10:55:0754:365:5118:11
5:51
+0:04
20K
12.43 mi11:13:281:12:575:5218:21
5:54
+0:03
Half
13.11 mi11:17:291:16:585:524:01
5:53
-0:01
25K
15.53 mi11:31:521:31:215:5314:23
5:56
+0:03
30K
18.64 mi11:50:201:49:495:5318:28
5:57
+0:01
20M
20.00 mi11:58:211:57:505:538:01
5:54
-0:03
21M
21.00 mi12:04:312:04:005:546:10
6:10
+0:16
35K
21.75 mi12:08:492:08:185:544:18
5:45
-0:25
23M
23.00 mi12:16:122:15:415:547:23
5:54
+0:09
24M
24.00 mi12:21:572:21:265:545:45
5:45
-0:09
40K
24.85 mi12:27:012:26:305:545:04
5:56
+0:11
25.2M
25.20 mi12:29:112:28:405:542:10
6:17
+0:21
Finish
26.22 mi12:35:172:34:465:546:06
5:59
-0:18

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

5:45 /mi

Average Pace

5:54 /mi

Slowest Pace

6:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:26:26

95% of race

Time at Steady Pace

8:20

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:54 /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 mi10:18:5918:285:5718:28
5:57
#605
10K
6.21 mi10:36:5636:255:5217:57
5:47
#482
15K
9.32 mi10:55:0754:365:5118:11
5:51
#457
20K
12.43 mi11:13:281:12:575:5218:21
5:54
#442
Half
13.11 mi11:17:291:16:585:524:01
5:53
#444
25K
15.53 mi11:31:521:31:215:5314:23
5:56
#442
30K
18.64 mi11:50:201:49:495:5318:28
5:57
#403
20M
20.00 mi11:58:211:57:505:538:01
5:54
#384
21M
21.00 mi12:04:312:04:005:546:10
6:10
#379
35K
21.75 mi12:08:492:08:185:544:18
5:45
#372
23M
23.00 mi12:16:122:15:415:547:23
5:54
#349
24M
24.00 mi12:21:572:21:265:545:45
5:45
#338
40K
24.85 mi12:27:012:26:305:545:04
5:56
#327
25.2M
25.20 mi12:29:112:28:405:542:10
6:17
#320
Finish
26.22 mi12:35:172:34:465:546:06
5:59
#319
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi605561561434(Top 2%)400(Top 3%)400(Top 8%)
10K6.21 mi3.10 mi482+123446+115446+115402(Top 2%)367(Top 2%)367(Top 7%)
15K9.32 mi3.11 mi457+25422+24422+24434(Top 2%)400(Top 3%)400(Top 8%)
20K12.43 mi3.11 mi442+15406+16406+16422(Top 2%)387(Top 3%)387(Top 7%)
Half13.11 mi0.68 mi444-2408-2408-2500(Top 2%)462(Top 3%)462(Top 9%)
25K15.53 mi2.42 mi442+2406+2406+2431(Top 2%)398(Top 3%)398(Top 8%)
30K18.64 mi3.11 mi403+39371+35371+35313(Top 1%)287(Top 2%)287(Top 5%)
20M20.00 mi1.36 mi384+19352+19352+19247(Top 0.9%)223(Top 1%)223(Top 4%)
21M21.00 mi1.00 mi379+5347+5347+5212(Top 0.8%)189(Top 1%)189(Top 4%)
35K21.75 mi0.75 mi372+7340+7340+7283(Top 1%)258(Top 2%)258(Top 5%)
23M23.00 mi1.25 mi349+23318+22318+22210(Top 0.8%)186(Top 1%)186(Top 4%)
24M24.00 mi1.00 mi338+11307+11307+11205(Top 0.8%)182(Top 1%)182(Top 3%)
40K24.85 mi0.85 mi327+11297+10297+10244(Top 0.9%)221(Top 1%)221(Top 4%)
25.2M25.20 mi0.35 mi320+7290+7290+7213(Top 0.8%)194(Top 1%)194(Top 4%)
Finish26.22 mi1.02 mi319+1288+2288+2680(Top 3%)649(Top 4%)649(Top 12%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

434

Males

400

M18-39

400

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

402

Males

367

M18-39

367

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

434

Males

400

M18-39

400

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

422

Males

387

M18-39

387

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

500

Males

462

M18-39

462

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

431

Males

398

M18-39

398

25K→30K

15.5 - 18.6 mi

Top 1%
×9stories
+181ft-148ft

Overall

313

Males

287

M18-39

287

30K→20M

18.6 - 20.0 mi

Top 0.9%
×5stories
+64ft-50ft

Overall

247

Males

223

M18-39

223

20M→21M

20.0 - 21.0 mi

Top 0.8%
×8stories
+106ft-24ft

Overall

212

Males

189

M18-39

189

21M→35K

21.0 - 21.8 mi

Top 1%
×7stories
+17ft-86ft

Overall

283

Males

258

M18-39

258

35K→23M

21.8 - 23.0 mi

Top 0.8%
×5stories
+23ft-63ft

Overall

210

Males

186

M18-39

186

23M→24M

23.0 - 24.0 mi

Top 0.8%
×6stories
+12ft-82ft

Overall

205

Males

182

M18-39

182

24M→40K

24.0 - 24.9 mi

Top 0.9%
×1story
+6ft-20ft

Overall

244

Males

221

M18-39

221

40K→25.2M

24.9 - 25.2 mi

Top 0.8%
×1story
+13ft-16ft

Overall

213

Males

194

M18-39

194

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

680

Males

649

M18-39

649

Passing Analysis

Category:
Athletes Passed
336
Passed By
50
Net Change
+286
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#605
5K → 10K1252+123#605#482
10K → 15K3611+25#482#457
15K → 20K227+15#457#442
20K → Half35-2#442#444
Half → 25K97+2#444#442
25K → 30K412+39#442#403
30K → 20M201+19#403#384
20M → 21M105+5#384#379
21M → 35K81+7#379#372
35K → 23M230+23#372#349
23M → 24M121+11#349#338
24M → 40K132+11#338#327
40K → 25.2M70+7#327#320
25.2M → Finish76+1#320#319
TOTALS33650+286
📊

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