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BOSTON MARATHON 2023

Steve Williams

Bib: 637•M

IN

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 6%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:24
Rank: #564
Start → 5K
18:24 | 5:55/mi
10K· 6.21 mi
36:45
Rank: #579 (-15)
5K → 10K
18:21 | 5:54/mi
15K· 9.32 mi
55:07
Rank: #564 (+15)
10K → 15K
18:22 | 5:55/mi
20K· 12.43 mi
1:13:36
Rank: #538 (+26)
15K → 20K
18:29 | 5:57/mi
Half· 13.11 mi
1:17:35
Rank: #529 (+9)
20K → Half
3:59 | 5:50/mi
25K· 15.53 mi
1:31:58
Rank: #512 (+17)
Half → 25K
14:23 | 5:56/mi
30K· 18.64 mi
1:50:26
Rank: #463 (+49)
25K → 30K
18:28 | 5:57/mi
20M
1:58:35
Rank: #451 (+12)
30K → 20M
8:09 | 6:00/mi
21M
2:04:47
Rank: #435 (+16)
20M → 21M
6:12 | 6:12/mi
35K· 21.75 mi
2:09:13
Rank: #433 (+2)
21M → 35K
4:26 | 5:56/mi
23M
2:16:47
Rank: #420 (+13)
35K → 23M
7:34 | 6:03/mi
24M
2:22:45
Rank: #414 (+6)
23M → 24M
5:58 | 5:58/mi
40K· 24.85 mi
2:27:50
Rank: #399 (+15)
24M → 40K
5:05 | 5:57/mi
25.2M
2:30:01
Rank: #390 (+9)
40K → 25.2M
2:11 | 6:20/mi
Finish· 26.22 mi
2:35:50
Rank: #376 (+14)
25.2M → Finish
5:49 | 5:42/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:17:35
Pace5:55 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:18:15
Pace5:58 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:3218:245:5518:24
5:55
-
10K
6.21 mi10:36:5336:455:5518:21
5:54
-0:01
15K
9.32 mi10:55:1555:075:5518:22
5:55
+0:01
20K
12.43 mi11:13:441:13:365:5518:29
5:57
+0:02
Half
13.11 mi11:17:431:17:355:553:59
5:50
-0:07
25K
15.53 mi11:32:061:31:585:5514:23
5:56
+0:06
30K
18.64 mi11:50:341:50:265:5518:28
5:57
+0:01
20M
20.00 mi11:58:431:58:355:568:09
6:00
+0:03
21M
21.00 mi12:04:552:04:475:576:12
6:12
+0:12
35K
21.75 mi12:09:212:09:135:564:26
5:56
-0:16
23M
23.00 mi12:16:552:16:475:577:34
6:03
+0:07
24M
24.00 mi12:22:532:22:455:575:58
5:58
-0:05
40K
24.85 mi12:27:582:27:505:575:05
5:57
-0:01
25.2M
25.20 mi12:30:092:30:015:572:11
6:20
+0:23
Finish
26.22 mi12:35:582:35:505:575:49
5:42
-0:38

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

5:42 /mi

Average Pace

5:57 /mi

Slowest Pace

6:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:33:39

99% of race

Time at Steady Pace

2:11

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:57 /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 mi10:18:3218:245:5518:24
5:55
#564
10K
6.21 mi10:36:5336:455:5518:21
5:54
#579
15K
9.32 mi10:55:1555:075:5518:22
5:55
#564
20K
12.43 mi11:13:441:13:365:5518:29
5:57
#538
Half
13.11 mi11:17:431:17:355:553:59
5:50
#529
25K
15.53 mi11:32:061:31:585:5514:23
5:56
#512
30K
18.64 mi11:50:341:50:265:5518:28
5:57
#463
20M
20.00 mi11:58:431:58:355:568:09
6:00
#451
21M
21.00 mi12:04:552:04:475:576:12
6:12
#435
35K
21.75 mi12:09:212:09:135:564:26
5:56
#433
23M
23.00 mi12:16:552:16:475:577:34
6:03
#420
24M
24.00 mi12:22:532:22:455:575:58
5:58
#414
40K
24.85 mi12:27:582:27:505:575:05
5:57
#399
25.2M
25.20 mi12:30:092:30:015:572:11
6:20
#390
Finish
26.22 mi12:35:582:35:505:575:49
5:42
#376
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi564521521532(Top 2%)490(Top 3%)490(Top 9%)
10K6.21 mi3.10 mi579-15537-16537-16600(Top 2%)557(Top 4%)557(Top 11%)
15K9.32 mi3.11 mi564+15521+16521+16532(Top 2%)490(Top 3%)490(Top 9%)
20K12.43 mi3.11 mi538+26497+24497+24494(Top 2%)455(Top 3%)455(Top 9%)
Half13.11 mi0.68 mi529+9489+8489+8436(Top 2%)404(Top 3%)404(Top 8%)
25K15.53 mi2.42 mi512+17472+17472+17434(Top 2%)401(Top 3%)401(Top 8%)
30K18.64 mi3.11 mi463+49426+46426+46315(Top 1%)289(Top 2%)289(Top 5%)
20M20.00 mi1.36 mi451+12416+10416+10343(Top 1%)316(Top 2%)316(Top 6%)
21M21.00 mi1.00 mi435+16400+16400+16239(Top 0.9%)215(Top 1%)215(Top 4%)
35K21.75 mi0.75 mi433+2398+2398+2540(Top 2%)502(Top 3%)502(Top 9%)
23M23.00 mi1.25 mi420+13385+13385+13358(Top 1%)332(Top 2%)332(Top 6%)
24M24.00 mi1.00 mi414+6380+5380+5478(Top 2%)451(Top 3%)451(Top 9%)
40K24.85 mi0.85 mi399+15365+15365+15274(Top 1%)251(Top 2%)251(Top 5%)
25.2M25.20 mi0.35 mi390+9358+7358+7255(Top 1.0%)235(Top 2%)235(Top 4%)
Finish26.22 mi1.02 mi376+14344+14344+14245(Top 0.9%)228(Top 2%)228(Top 4%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

532

Males

490

M18-39

490

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

600

Males

557

M18-39

557

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

532

Males

490

M18-39

490

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

494

Males

455

M18-39

455

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

436

Males

404

M18-39

404

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

434

Males

401

M18-39

401

25K→30K

15.5 - 18.6 mi

Top 1%
×9stories
+181ft-148ft

Overall

315

Males

289

M18-39

289

30K→20M

18.6 - 20.0 mi

Top 1%
×5stories
+64ft-50ft

Overall

343

Males

316

M18-39

316

20M→21M

20.0 - 21.0 mi

Top 0.9%
×8stories
+106ft-24ft

Overall

239

Males

215

M18-39

215

21M→35K

21.0 - 21.8 mi

Top 2%
×7stories
+17ft-86ft

Overall

540

Males

502

M18-39

502

35K→23M

21.8 - 23.0 mi

Top 1%
×5stories
+23ft-63ft

Overall

358

Males

332

M18-39

332

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

478

Males

451

M18-39

451

24M→40K

24.0 - 24.9 mi

Top 1%
×1story
+6ft-20ft

Overall

274

Males

251

M18-39

251

40K→25.2M

24.9 - 25.2 mi

Top 1.0%
×1story
+13ft-16ft

Overall

255

Males

235

M18-39

235

25.2M→Finish

25.2 - 26.2 mi

Top 0.9%
×2stories
+22ft-21ft

Overall

245

Males

228

M18-39

228

Passing Analysis

Category:
Athletes Passed
268
Passed By
80
Net Change
+188
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#564
5K → 10K2540-15#564#579
10K → 15K2510+15#579#564
15K → 20K337+26#564#538
20K → Half90+9#538#529
Half → 25K203+17#529#512
25K → 30K523+49#512#463
30K → 20M153+12#463#451
20M → 21M160+16#451#435
21M → 35K53+2#435#433
35K → 23M141+13#433#420
23M → 24M126+6#420#414
24M → 40K161+15#414#399
40K → 25.2M112+9#399#390
25.2M → Finish151+14#390#376
TOTALS26880+188
📊

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