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BOSTON MARATHON 2023

William Knox

Bib: 2642•M

MD

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 18%
Gender (Male)
#0 / 15176
Top 30%
Division (M18-39)
#0 / 5285
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
7:03/mi
21:55
↑ 97↓ 3451.5%
10K· 6.21 mi
7:01/mi
43:42
↑ 79↓ 1380.4%
15K· 9.32 mi
6:56/mi
1:05:16
↑ 67↓ 78
20K· 12.43 mi
7:07/mi
1:27:23
↑ 106↓ 860.1%
Half· 13.11 mi
6:47/mi
1:32:01
↑ 19↓ 370.5%
25K· 15.53 mi
6:56/mi
1:48:50
↑ 66↓ 880.2%
30K· 18.64 mi
7:00/mi
2:10:34
↑ 181↓ 1480.2%
20M
7:00/mi
2:20:05
↑ 64↓ 500.2%
21M
7:31/mi
2:27:36
↑ 106↓ 241.6%
35K· 21.75 mi
6:45/mi
2:32:39
↑ 17↓ 861.7%
23M
7:03/mi
2:41:28
↑ 23↓ 630.6%
24M
6:41/mi
2:48:09
↓ 821.3%
40K· 24.85 mi
6:53/mi
2:54:02
↓ 200.3%
25.2M
7:21/mi
2:56:34
↑ 13↓ 160.2%
Finish· 26.22 mi
6:34/mi
3:03:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:32:01
Pace7:01 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:31:15
Pace6:58 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:5321:557:0321:55
7:03
-
10K
6.21 mi10:44:4043:427:0221:47
7:01
-0:02
15K
9.32 mi11:06:141:05:167:0021:34
6:56
-0:05
20K
12.43 mi11:28:211:27:237:0222:07
7:07
+0:11
Half
13.11 mi11:32:591:32:017:014:38
6:47
-0:20
25K
15.53 mi11:49:481:48:507:0016:49
6:56
+0:09
30K
18.64 mi12:11:322:10:347:0021:44
7:00
+0:04
20M
20.00 mi12:21:032:20:057:009:31
7:00
0:00
21M
21.00 mi12:28:342:27:367:027:31
7:31
+0:31
35K
21.75 mi12:33:372:32:397:015:03
6:45
-0:46
23M
23.00 mi12:42:262:41:287:018:49
7:03
+0:18
24M
24.00 mi12:49:072:48:097:006:41
6:41
-0:22
40K
24.85 mi12:55:002:54:027:005:53
6:53
+0:12
25.2M
25.20 mi12:57:322:56:347:002:32
7:21
+0:28
Finish
26.22 mi13:04:143:03:167:006:42
6:34
-0:47

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

6:34 /mi

Average Pace

7:00 /mi

Slowest Pace

7:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:53:13

95% of race

Time at Steady Pace

10:03

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:59 /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 mi10:22:5321:557:0321:55
7:03
#6578
10K
6.21 mi10:44:4043:427:0221:47
7:01
#6682
15K
9.32 mi11:06:141:05:167:0021:34
6:56
#6521
20K
12.43 mi11:28:211:27:237:0222:07
7:07
#6514
Half
13.11 mi11:32:591:32:017:014:38
6:47
#6456
25K
15.53 mi11:49:481:48:507:0016:49
6:56
#6252
30K
18.64 mi12:11:322:10:347:0021:44
7:00
#5837
20M
20.00 mi12:21:032:20:057:009:31
7:00
#5673
21M
21.00 mi12:28:342:27:367:027:31
7:31
#5588
35K
21.75 mi12:33:372:32:397:015:03
6:45
#5495
23M
23.00 mi12:42:262:41:287:018:49
7:03
#5343
24M
24.00 mi12:49:072:48:097:006:41
6:41
#5178
40K
24.85 mi12:55:002:54:027:005:53
6:53
#5066
25.2M
25.20 mi12:57:322:56:347:002:32
7:21
#5016
Finish
26.22 mi13:04:143:03:167:006:42
6:34
#4898
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6578594359436195(Top 23%)5614(Top 37%)5614(Top 106%)
10K6.21 mi3.10 mi6682-1046018-756018-756884(Top 26%)6145(Top 40%)6145(Top 116%)
15K9.32 mi3.11 mi6521+1615885+1335885+1336195(Top 23%)5614(Top 37%)5614(Top 106%)
20K12.43 mi3.11 mi6514+75875+105875+106635(Top 25%)5936(Top 39%)5936(Top 112%)
Half13.11 mi0.68 mi6456+585827+485827+485171(Top 19%)4781(Top 32%)4781(Top 90%)
25K15.53 mi2.42 mi6252+2045668+1595668+1595177(Top 19%)4775(Top 31%)4775(Top 90%)
30K18.64 mi3.11 mi5837+4155339+3295339+3294318(Top 16%)4016(Top 26%)4016(Top 76%)
20M20.00 mi1.36 mi5673+1645199+1405199+1404072(Top 15%)3772(Top 25%)3772(Top 71%)
21M21.00 mi1.00 mi5588+855125+745125+744658(Top 17%)4224(Top 28%)4224(Top 80%)
35K21.75 mi0.75 mi5495+935043+825043+823897(Top 15%)3591(Top 24%)3591(Top 68%)
23M23.00 mi1.25 mi5343+1524904+1394904+1394003(Top 15%)3684(Top 24%)3684(Top 70%)
24M24.00 mi1.00 mi5178+1654753+1514753+1513048(Top 11%)2832(Top 19%)2832(Top 54%)
40K24.85 mi0.85 mi5066+1124661+924661+923249(Top 12%)2979(Top 20%)2979(Top 56%)
25.2M25.20 mi0.35 mi5016+504614+474614+473208(Top 12%)2931(Top 19%)2931(Top 55%)
Finish26.22 mi1.02 mi4898+1184510+1044510+1042872(Top 11%)2609(Top 17%)2609(Top 49%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21story building
+97ft-345ft

Overall

6195

Males

5614

M18-39

5614

5K→10K

3.1 - 6.2 mi

Top 26%
×5story building
+79ft-138ft

Overall

6884

Males

6145

M18-39

6145

10K→15K

6.2 - 9.3 mi

Top 23%
×3story building
+67ft-78ft

Overall

6195

Males

5614

M18-39

5614

15K→20K

9.3 - 12.4 mi

Top 25%
×5story building
+106ft-86ft

Overall

6635

Males

5936

M18-39

5936

20K→Half

12.4 - 13.1 mi

Top 19%
×2story building
+19ft-37ft

Overall

5171

Males

4781

M18-39

4781

Half→25K

13.1 - 15.5 mi

Top 19%
×4story building
+66ft-88ft

Overall

5177

Males

4775

M18-39

4775

25K→30K

15.5 - 18.6 mi

Top 16%
×9story building
+181ft-148ft

Overall

4318

Males

4016

M18-39

4016

30K→20M

18.6 - 20.0 mi

Top 15%
×5story building
+64ft-50ft

Overall

4072

Males

3772

M18-39

3772

20M→21M

20.0 - 21.0 mi

Top 17%
×8story building
+106ft-24ft

Overall

4658

Males

4224

M18-39

4224

21M→35K

21.0 - 21.8 mi

Top 15%
×7story building
+17ft-86ft

Overall

3897

Males

3591

M18-39

3591

35K→23M

21.8 - 23.0 mi

Top 15%
×5story building
+23ft-63ft

Overall

4003

Males

3684

M18-39

3684

23M→24M

23.0 - 24.0 mi

Top 11%
×6story building
+12ft-82ft

Overall

3048

Males

2832

M18-39

2832

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3249

Males

2979

M18-39

2979

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3208

Males

2931

M18-39

2931

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2story building
+22ft-21ft

Overall

2872

Males

2609

M18-39

2609

Passing Analysis

Category:
Athletes Passed
2132
Passed By
452
Net Change
+1680
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6578
5K → 10K148252-104#6578#6682
10K → 15K21049+161#6682#6521
15K → 20K109102+7#6521#6514
20K → Half602+58#6514#6456
Half → 25K2106+204#6456#6252
25K → 30K4183+415#6252#5837
30K → 20M1673+164#5837#5673
20M → 21M10015+85#5673#5588
21M → 35K941+93#5588#5495
35K → 23M1608+152#5495#5343
23M → 24M1672+165#5343#5178
24M → 40K1164+112#5178#5066
40K → 25.2M511+50#5066#5016
25.2M → Finish1224+118#5016#4898
TOTALS2132452+1680
📊

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