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BOSTON MARATHON 2023

Jonathan Schloth

Bib: 1597•M

NY

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 4%
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
5:56/mi
18:27
↑ 97↓ 3451.5%
10K· 6.21 mi
5:50/mi
36:34
↑ 79↓ 1380.4%
15K· 9.32 mi
5:53/mi
54:51
↑ 67↓ 78
20K· 12.43 mi
5:55/mi
1:13:15
↑ 106↓ 860.1%
Half· 13.11 mi
5:50/mi
1:17:14
↑ 19↓ 370.5%
25K· 15.53 mi
5:52/mi
1:31:27
↑ 66↓ 880.2%
30K· 18.64 mi
5:57/mi
1:49:56
↑ 181↓ 1480.2%
20M
5:52/mi
1:57:54
↑ 64↓ 500.2%
21M
6:06/mi
2:04:00
↑ 106↓ 241.6%
35K· 21.75 mi
5:40/mi
2:08:14
↑ 17↓ 861.7%
23M
5:53/mi
2:15:36
↑ 23↓ 630.6%
24M
5:39/mi
2:21:15
↓ 821.3%
40K· 24.85 mi
5:49/mi
2:26:13
↓ 200.3%
25.2M
6:29/mi
2:28:27
↑ 13↓ 160.2%
Finish· 26.22 mi
5:48/mi
2:34:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:17:14
Pace5:53 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:17:08
Pace5:53 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:5518:275:5618:27
5:56
-
10K
6.21 mi10:37:0236:345:5318:07
5:50
-0:06
15K
9.32 mi10:55:1954:515:5318:17
5:53
+0:03
20K
12.43 mi11:13:431:13:155:5418:24
5:55
+0:02
Half
13.11 mi11:17:421:17:145:533:59
5:50
-0:05
25K
15.53 mi11:31:551:31:275:5314:13
5:52
+0:02
30K
18.64 mi11:50:241:49:565:5418:29
5:57
+0:05
20M
20.00 mi11:58:221:57:545:547:58
5:52
-0:05
21M
21.00 mi12:04:282:04:005:546:06
6:06
+0:14
35K
21.75 mi12:08:422:08:145:544:14
5:40
-0:26
23M
23.00 mi12:16:042:15:365:547:22
5:53
+0:13
24M
24.00 mi12:21:432:21:155:535:39
5:39
-0:14
40K
24.85 mi12:26:412:26:135:534:58
5:49
+0:10
25.2M
25.20 mi12:28:552:28:275:532:14
6:29
+0:40
Finish
26.22 mi12:34:502:34:225:545:55
5:48
-0:41

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

5:54 /mi

Slowest Pace

6:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:08

99% of race

Time at Steady Pace

2:14

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:53 /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 mi10:18:5518:275:5618:27
5:56
#597
10K
6.21 mi10:37:0236:345:5318:07
5:50
#525
15K
9.32 mi10:55:1954:515:5318:17
5:53
#516
20K
12.43 mi11:13:431:13:155:5418:24
5:55
#487
Half
13.11 mi11:17:421:17:145:533:59
5:50
#479
25K
15.53 mi11:31:551:31:275:5314:13
5:52
#453
30K
18.64 mi11:50:241:49:565:5418:29
5:57
#415
20M
20.00 mi11:58:221:57:545:547:58
5:52
#394
21M
21.00 mi12:04:282:04:005:546:06
6:06
#378
35K
21.75 mi12:08:422:08:145:544:14
5:40
#366
23M
23.00 mi12:16:042:15:365:547:22
5:53
#343
24M
24.00 mi12:21:432:21:155:535:39
5:39
#329
40K
24.85 mi12:26:412:26:135:534:58
5:49
#312
25.2M
25.20 mi12:28:552:28:275:532:14
6:29
#310
Finish
26.22 mi12:34:502:34:225:545:55
5:48
#298
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi597553553474(Top 2%)438(Top 3%)438(Top 8%)
10K6.21 mi3.10 mi525+72483+70483+70469(Top 2%)433(Top 3%)433(Top 8%)
15K9.32 mi3.11 mi516+9474+9474+9474(Top 2%)438(Top 3%)438(Top 8%)
20K12.43 mi3.11 mi487+29448+26448+26443(Top 2%)407(Top 3%)407(Top 8%)
Half13.11 mi0.68 mi479+8440+8440+8430(Top 2%)398(Top 3%)398(Top 8%)
25K15.53 mi2.42 mi453+26417+23417+23346(Top 1%)318(Top 2%)318(Top 6%)
30K18.64 mi3.11 mi415+38382+35382+35322(Top 1%)296(Top 2%)296(Top 6%)
20M20.00 mi1.36 mi394+21362+20362+20218(Top 0.8%)196(Top 1%)196(Top 4%)
21M21.00 mi1.00 mi378+16346+16346+16163(Top 0.6%)143(Top 0.9%)143(Top 3%)
35K21.75 mi0.75 mi366+12334+12334+12187(Top 0.7%)164(Top 1%)164(Top 3%)
23M23.00 mi1.25 mi343+23312+22312+22197(Top 0.7%)174(Top 1%)174(Top 3%)
24M24.00 mi1.00 mi329+14298+14298+14148(Top 0.6%)130(Top 0.9%)130(Top 2%)
40K24.85 mi0.85 mi312+17282+16282+16156(Top 0.6%)141(Top 0.9%)141(Top 3%)
25.2M25.20 mi0.35 mi310+2280+2280+2448(Top 2%)422(Top 3%)422(Top 8%)
Finish26.22 mi1.02 mi298+12270+10270+10378(Top 1%)359(Top 2%)359(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21story building
+97ft-345ft

Overall

474

Males

438

M18-39

438

5K→10K

3.1 - 6.2 mi

Top 2%
×5story building
+79ft-138ft

Overall

469

Males

433

M18-39

433

10K→15K

6.2 - 9.3 mi

Top 2%
×3story building
+67ft-78ft

Overall

474

Males

438

M18-39

438

15K→20K

9.3 - 12.4 mi

Top 2%
×5story building
+106ft-86ft

Overall

443

Males

407

M18-39

407

20K→Half

12.4 - 13.1 mi

Top 2%
×2story building
+19ft-37ft

Overall

430

Males

398

M18-39

398

Half→25K

13.1 - 15.5 mi

Top 1%
×4story building
+66ft-88ft

Overall

346

Males

318

M18-39

318

25K→30K

15.5 - 18.6 mi

Top 1%
×9story building
+181ft-148ft

Overall

322

Males

296

M18-39

296

30K→20M

18.6 - 20.0 mi

Top 0.8%
×5story building
+64ft-50ft

Overall

218

Males

196

M18-39

196

20M→21M

20.0 - 21.0 mi

Top 0.6%
×8story building
+106ft-24ft

Overall

163

Males

143

M18-39

143

21M→35K

21.0 - 21.8 mi

Top 0.7%
×7story building
+17ft-86ft

Overall

187

Males

164

M18-39

164

35K→23M

21.8 - 23.0 mi

Top 0.7%
×5story building
+23ft-63ft

Overall

197

Males

174

M18-39

174

23M→24M

23.0 - 24.0 mi

Top 0.6%
×6story building
+12ft-82ft

Overall

148

Males

130

M18-39

130

24M→40K

24.0 - 24.9 mi

Top 0.6%
×1story
+6ft-20ft

Overall

156

Males

141

M18-39

141

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

448

Males

422

M18-39

422

25.2M→Finish

25.2 - 26.2 mi

Top 1%
×2story building
+22ft-21ft

Overall

378

Males

359

M18-39

359

Passing Analysis

Category:
Athletes Passed
344
Passed By
45
Net Change
+299
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#597
5K → 10K808+72#597#525
10K → 15K189+9#525#516
15K → 20K378+29#516#487
20K → Half91+8#487#479
Half → 25K293+26#479#453
25K → 30K435+38#453#415
30K → 20M232+21#415#394
20M → 21M182+16#394#378
21M → 35K120+12#378#366
35K → 23M241+23#366#343
23M → 24M140+14#343#329
24M → 40K170+17#329#312
40K → 25.2M53+2#312#310
25.2M → Finish153+12#310#298
TOTALS34445+299
📊

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