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BOSTON MARATHON 2023

Jonah Spector

Bib: 2807•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
18:07
Rank: #426
Start → 5K
18:07 | 5:50/mi
10K· 6.21 mi
36:07
Rank: #417 (+9)
5K → 10K
18:00 | 5:48/mi
15K· 9.32 mi
54:13
Rank: #403 (+14)
10K → 15K
18:06 | 5:50/mi
20K· 12.43 mi
1:12:23
Rank: #387 (+16)
15K → 20K
18:10 | 5:51/mi
Half· 13.11 mi
1:16:19
Rank: #385 (+2)
20K → Half
3:56 | 5:46/mi
25K· 15.53 mi
1:30:26
Rank: #368 (+17)
Half → 25K
14:07 | 5:49/mi
30K· 18.64 mi
1:48:42
Rank: #336 (+32)
25K → 30K
18:16 | 5:53/mi
20M
1:56:45
Rank: #326 (+10)
30K → 20M
8:03 | 5:55/mi
21M
2:02:55
Rank: #318 (+8)
20M → 21M
6:10 | 6:10/mi
35K· 21.75 mi
2:07:15
Rank: #311 (+7)
21M → 35K
4:20 | 5:48/mi
23M
2:15:07
Rank: #319 (-8)
35K → 23M
7:52 | 6:17/mi
24M
2:21:16
Rank: #332 (-13)
23M → 24M
6:09 | 6:09/mi
40K· 24.85 mi
2:26:39
Rank: #335 (-3)
24M → 40K
5:23 | 6:18/mi
25.2M
2:28:55
Rank: #334 (+1)
40K → 25.2M
2:16 | 6:34/mi
Finish· 26.22 mi
2:34:45
Rank: #318 (+16)
25.2M → Finish
5:50 | 5:43/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:16:19
Pace5:49 /mi
2nd Half
Distance13.11 mi
Time1:18:26
Pace5:59 /mi
📊Positive Split: 2.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:1418:075:5018:07
5:50
-
10K
6.21 mi10:37:1436:075:4918:00
5:48
-0:02
15K
9.32 mi10:55:2054:135:4918:06
5:50
+0:02
20K
12.43 mi11:13:301:12:235:4918:10
5:51
+0:01
Half
13.11 mi11:17:261:16:195:493:56
5:46
-0:05
25K
15.53 mi11:31:331:30:265:4914:07
5:49
+0:03
30K
18.64 mi11:49:491:48:425:5018:16
5:53
+0:04
20M
20.00 mi11:57:521:56:455:508:03
5:55
+0:02
21M
21.00 mi12:04:022:02:555:516:10
6:10
+0:15
35K
21.75 mi12:08:222:07:155:514:20
5:48
-0:22
23M
23.00 mi12:16:142:15:075:527:52
6:17
+0:29
24M
24.00 mi12:22:232:21:165:536:09
6:09
-0:08
40K
24.85 mi12:27:462:26:395:545:23
6:18
+0:09
25.2M
25.20 mi12:30:022:28:555:552:16
6:34
+0:16
Finish
26.22 mi12:35:522:34:455:545:50
5:43
-0:51

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

5:54 /mi

Slowest Pace

6:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:27:06

95% of race

Time at Steady Pace

7:39

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 mi10:19:1418:075:5018:07
5:50
#426
10K
6.21 mi10:37:1436:075:4918:00
5:48
#417
15K
9.32 mi10:55:2054:135:4918:06
5:50
#403
20K
12.43 mi11:13:301:12:235:4918:10
5:51
#387
Half
13.11 mi11:17:261:16:195:493:56
5:46
#385
25K
15.53 mi11:31:331:30:265:4914:07
5:49
#368
30K
18.64 mi11:49:491:48:425:5018:16
5:53
#336
20M
20.00 mi11:57:521:56:455:508:03
5:55
#326
21M
21.00 mi12:04:022:02:555:516:10
6:10
#318
35K
21.75 mi12:08:222:07:155:514:20
5:48
#311
23M
23.00 mi12:16:142:15:075:527:52
6:17
#319
24M
24.00 mi12:22:232:21:165:536:09
6:09
#332
40K
24.85 mi12:27:462:26:395:545:23
6:18
#335
25.2M
25.20 mi12:30:022:28:555:552:16
6:34
#334
Finish
26.22 mi12:35:522:34:455:545:50
5:43
#318
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi426391391397(Top 1%)363(Top 2%)363(Top 7%)
10K6.21 mi3.10 mi417+9382+9382+9415(Top 2%)380(Top 3%)380(Top 7%)
15K9.32 mi3.11 mi403+14368+14368+14397(Top 1%)363(Top 2%)363(Top 7%)
20K12.43 mi3.11 mi387+16352+16352+16349(Top 1%)317(Top 2%)317(Top 6%)
Half13.11 mi0.68 mi385+2351+1351+1347(Top 1%)318(Top 2%)318(Top 6%)
25K15.53 mi2.42 mi368+17336+15336+15305(Top 1%)277(Top 2%)277(Top 5%)
30K18.64 mi3.11 mi336+32304+32304+32227(Top 0.9%)204(Top 1%)204(Top 4%)
20M20.00 mi1.36 mi326+10294+10294+10272(Top 1%)248(Top 2%)248(Top 5%)
21M21.00 mi1.00 mi318+8287+7287+7211(Top 0.8%)188(Top 1%)188(Top 4%)
35K21.75 mi0.75 mi311+7280+7280+7351(Top 1%)322(Top 2%)322(Top 6%)
23M23.00 mi1.25 mi319-8288-8288-8778(Top 3%)737(Top 5%)737(Top 14%)
24M24.00 mi1.00 mi332-13301-13301-13856(Top 3%)811(Top 5%)811(Top 15%)
40K24.85 mi0.85 mi335-3304-3304-3862(Top 3%)815(Top 5%)815(Top 15%)
25.2M25.20 mi0.35 mi334+1302+2302+2590(Top 2%)557(Top 4%)557(Top 11%)
Finish26.22 mi1.02 mi318+16287+15287+15265(Top 1.0%)248(Top 2%)248(Top 5%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1%
×21stories
+97ft-345ft

Overall

397

Males

363

M18-39

363

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

415

Males

380

M18-39

380

10K→15K

6.2 - 9.3 mi

Top 1%
×3stories
+67ft-78ft

Overall

397

Males

363

M18-39

363

15K→20K

9.3 - 12.4 mi

Top 1%
×5stories
+106ft-86ft

Overall

349

Males

317

M18-39

317

20K→Half

12.4 - 13.1 mi

Top 1%
×2stories
+19ft-37ft

Overall

347

Males

318

M18-39

318

Half→25K

13.1 - 15.5 mi

Top 1%
×4stories
+66ft-88ft

Overall

305

Males

277

M18-39

277

25K→30K

15.5 - 18.6 mi

Top 0.9%
×9stories
+181ft-148ft

Overall

227

Males

204

M18-39

204

30K→20M

18.6 - 20.0 mi

Top 1%
×5stories
+64ft-50ft

Overall

272

Males

248

M18-39

248

20M→21M

20.0 - 21.0 mi

Top 0.8%
×8stories
+106ft-24ft

Overall

211

Males

188

M18-39

188

21M→35K

21.0 - 21.8 mi

Top 1%
×7stories
+17ft-86ft

Overall

351

Males

322

M18-39

322

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

778

Males

737

M18-39

737

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

856

Males

811

M18-39

811

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

862

Males

815

M18-39

815

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

590

Males

557

M18-39

557

25.2M→Finish

25.2 - 26.2 mi

Top 1.0%
×2stories
+22ft-21ft

Overall

265

Males

248

M18-39

248

Passing Analysis

Category:
Athletes Passed
179
Passed By
71
Net Change
+108
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#426
5K → 10K2415+9#426#417
10K → 15K195+14#417#403
15K → 20K204+16#403#387
20K → Half20+2#387#385
Half → 25K203+17#385#368
25K → 30K331+32#368#336
30K → 20M133+10#336#326
20M → 21M80+8#326#318
21M → 35K70+7#318#311
35K → 23M513-8#311#319
23M → 24M316-13#319#332
24M → 40K69-3#332#335
40K → 25.2M32+1#335#334
25.2M → Finish160+16#334#318
TOTALS17971+108
📊

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