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BOSTON MARATHON 2023

Jacob Willcox

Bib: 1457•M

WA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 4%
Gender (Male)
#0 / 15176
Top 7%
Division (M18-39)
#0 / 5285
Top 16%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:28
Rank: #1305
Start → 5K
19:28 | 6:16/mi
10K· 6.21 mi
38:54
Rank: #1410 (-105)
5K → 10K
19:26 | 6:15/mi
15K· 9.32 mi
58:19
Rank: #1407 (+3)
10K → 15K
19:25 | 6:15/mi
20K· 12.43 mi
1:17:52
Rank: #1363 (+44)
15K → 20K
19:33 | 6:18/mi
Half· 13.11 mi
1:22:07
Rank: #1358 (+5)
20K → Half
4:15 | 6:14/mi
25K· 15.53 mi
1:37:30
Rank: #1376 (-18)
Half → 25K
15:23 | 6:21/mi
30K· 18.64 mi
1:57:27
Rank: #1341 (+35)
25K → 30K
19:57 | 6:25/mi
20M
2:06:07
Rank: #1316 (+25)
30K → 20M
8:40 | 6:23/mi
21M
2:12:45
Rank: #1271 (+45)
20M → 21M
6:38 | 6:38/mi
35K· 21.75 mi
2:17:18
Rank: #1237 (+34)
21M → 35K
4:33 | 6:05/mi
23M
2:25:08
Rank: #1175 (+62)
35K → 23M
7:50 | 6:15/mi
24M
2:31:15
Rank: #1149 (+26)
23M → 24M
6:07 | 6:07/mi
40K· 24.85 mi
2:36:31
Rank: #1115 (+34)
24M → 40K
5:16 | 6:10/mi
25.2M
2:38:44
Rank: #1095 (+20)
40K → 25.2M
2:13 | 6:26/mi
Finish· 26.22 mi
2:44:39
Rank: #1038 (+57)
25.2M → Finish
5:55 | 5:48/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:22:07
Pace6:16 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:22:32
Pace6:18 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:0019:286:1619:28
6:16
-
10K
6.21 mi10:39:2638:546:1619:26
6:15
-0:01
15K
9.32 mi10:58:5158:196:1519:25
6:15
0:00
20K
12.43 mi11:18:241:17:526:1619:33
6:18
+0:03
Half
13.11 mi11:22:391:22:076:164:15
6:14
-0:04
25K
15.53 mi11:38:021:37:306:1715:23
6:21
+0:07
30K
18.64 mi11:57:591:57:276:1819:57
6:25
+0:04
20M
20.00 mi12:06:392:06:076:188:40
6:23
-0:02
21M
21.00 mi12:13:172:12:456:196:38
6:38
+0:15
35K
21.75 mi12:17:502:17:186:194:33
6:05
-0:33
23M
23.00 mi12:25:402:25:086:197:50
6:15
+0:10
24M
24.00 mi12:31:472:31:156:186:07
6:07
-0:08
40K
24.85 mi12:37:032:36:316:185:16
6:10
+0:03
25.2M
25.20 mi12:39:162:38:446:182:13
6:26
+0:16
Finish
26.22 mi12:45:112:44:396:175:55
5:48
-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

5:48 /mi

Average Pace

6:17 /mi

Slowest Pace

6:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:07:11

77% of race

Time at Steady Pace

37:28

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:17 /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 mi10:20:0019:286:1619:28
6:16
#1305
10K
6.21 mi10:39:2638:546:1619:26
6:15
#1410
15K
9.32 mi10:58:5158:196:1519:25
6:15
#1407
20K
12.43 mi11:18:241:17:526:1619:33
6:18
#1363
Half
13.11 mi11:22:391:22:076:164:15
6:14
#1358
25K
15.53 mi11:38:021:37:306:1715:23
6:21
#1376
30K
18.64 mi11:57:591:57:276:1819:57
6:25
#1341
20M
20.00 mi12:06:392:06:076:188:40
6:23
#1316
21M
21.00 mi12:13:172:12:456:196:38
6:38
#1271
35K
21.75 mi12:17:502:17:186:194:33
6:05
#1237
23M
23.00 mi12:25:402:25:086:197:50
6:15
#1175
24M
24.00 mi12:31:472:31:156:186:07
6:07
#1149
40K
24.85 mi12:37:032:36:316:185:16
6:10
#1115
25.2M
25.20 mi12:39:162:38:446:182:13
6:26
#1095
Finish
26.22 mi12:45:112:44:396:175:55
5:48
#1038
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1305123912391424(Top 5%)1357(Top 9%)1357(Top 26%)
10K6.21 mi3.10 mi1410-1051344-1051344-1051572(Top 6%)1502(Top 10%)1502(Top 28%)
15K9.32 mi3.11 mi1407+31342+21342+21424(Top 5%)1357(Top 9%)1357(Top 26%)
20K12.43 mi3.11 mi1363+441297+451297+451340(Top 5%)1280(Top 8%)1280(Top 24%)
Half13.11 mi0.68 mi1358+51294+31294+31450(Top 5%)1386(Top 9%)1386(Top 26%)
25K15.53 mi2.42 mi1376-181313-191313-191485(Top 6%)1421(Top 9%)1421(Top 27%)
30K18.64 mi3.11 mi1341+351280+331280+331274(Top 5%)1216(Top 8%)1216(Top 23%)
20M20.00 mi1.36 mi1316+251257+231257+231060(Top 4%)1015(Top 7%)1015(Top 19%)
21M21.00 mi1.00 mi1271+451215+421215+42931(Top 3%)883(Top 6%)883(Top 17%)
35K21.75 mi0.75 mi1237+341181+341181+34879(Top 3%)836(Top 6%)836(Top 16%)
23M23.00 mi1.25 mi1175+621122+591122+59735(Top 3%)695(Top 5%)695(Top 13%)
24M24.00 mi1.00 mi1149+261095+271095+27799(Top 3%)757(Top 5%)757(Top 14%)
40K24.85 mi0.85 mi1115+341063+321063+32595(Top 2%)561(Top 4%)561(Top 11%)
25.2M25.20 mi0.35 mi1095+201043+201043+20411(Top 2%)389(Top 3%)389(Top 7%)
Finish26.22 mi1.02 mi1038+57987+56987+56393(Top 1%)374(Top 2%)374(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1424

Males

1357

M18-39

1357

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1572

Males

1502

M18-39

1502

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1424

Males

1357

M18-39

1357

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1340

Males

1280

M18-39

1280

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1450

Males

1386

M18-39

1386

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1485

Males

1421

M18-39

1421

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1274

Males

1216

M18-39

1216

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1060

Males

1015

M18-39

1015

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

931

Males

883

M18-39

883

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

879

Males

836

M18-39

836

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

735

Males

695

M18-39

695

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

799

Males

757

M18-39

757

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

595

Males

561

M18-39

561

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

411

Males

389

M18-39

389

25.2M→Finish

25.2 - 26.2 mi

Top 1%
×2stories
+22ft-21ft

Overall

393

Males

374

M18-39

374

Passing Analysis

Category:
Athletes Passed
573
Passed By
306
Net Change
+267
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1305
5K → 10K43148-105#1305#1410
10K → 15K4946+3#1410#1407
15K → 20K6117+44#1407#1363
20K → Half105+5#1363#1358
Half → 25K2442-18#1358#1376
25K → 30K5924+35#1376#1341
30K → 20M327+25#1341#1316
20M → 21M516+45#1316#1271
21M → 35K373+34#1271#1237
35K → 23M631+62#1237#1175
23M → 24M326+26#1175#1149
24M → 40K351+34#1149#1115
40K → 25.2M200+20#1115#1095
25.2M → Finish570+57#1095#1038
TOTALS573306+267
📊

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