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BOSTON MARATHON 2023

Andrew Eerdmans

Bib: 4394•M

ND

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 21%
Gender (Male)
#0 / 15176
Top 33%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:33
Rank: #5837
Start → 5K
21:33 | 6:56/mi
10K· 6.21 mi
42:58
Rank: #5929 (-92)
5K → 10K
21:25 | 6:54/mi
15K· 9.32 mi
1:04:24
Rank: #5915 (+14)
10K → 15K
21:26 | 6:54/mi
20K· 12.43 mi
1:26:55
Rank: #6317 (-402)
15K → 20K
22:31 | 7:15/mi
Half· 13.11 mi
1:31:36
Rank: #6286 (+31)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:48:31
Rank: #6121 (+165)
Half → 25K
16:55 | 6:59/mi
30K· 18.64 mi
2:13:08
Rank: #6629 (-508)
25K → 30K
24:37 | 7:55/mi
20M
2:22:43
Rank: #6441 (+188)
30K → 20M
9:35 | 7:03/mi
21M
2:30:12
Rank: #6300 (+141)
20M → 21M
7:29 | 7:29/mi
35K· 21.75 mi
2:35:18
Rank: #6213 (+87)
21M → 35K
5:06 | 6:49/mi
23M
2:44:13
Rank: #6043 (+170)
35K → 23M
8:55 | 7:07/mi
24M
2:51:01
Rank: #5877 (+166)
23M → 24M
6:48 | 6:48/mi
40K· 24.85 mi
2:56:53
Rank: #5736 (+141)
24M → 40K
5:52 | 6:52/mi
25.2M
2:59:28
Rank: #5688 (+48)
40K → 25.2M
2:35 | 7:29/mi
Finish· 26.22 mi
3:06:15
Rank: #5529 (+159)
25.2M → Finish
6:47 | 6:39/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:36
Pace6:59 /mi
2nd Half
Distance13.11 mi
Time1:34:39
Pace7:13 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:4321:336:5621:33
6:56
-
10K
6.21 mi10:45:0842:586:5521:25
6:54
-0:02
15K
9.32 mi11:06:341:04:246:5521:26
6:54
0:00
20K
12.43 mi11:29:051:26:557:0022:31
7:15
+0:21
Half
13.11 mi11:33:461:31:366:594:41
6:52
-0:23
25K
15.53 mi11:50:411:48:316:5916:55
6:59
+0:07
30K
18.64 mi12:15:182:13:087:0924:37
7:55
+0:56
20M
20.00 mi12:24:532:22:437:089:35
7:03
-0:52
21M
21.00 mi12:32:222:30:127:097:29
7:29
+0:26
35K
21.75 mi12:37:282:35:187:085:06
6:49
-0:40
23M
23.00 mi12:46:232:44:137:088:55
7:07
+0:18
24M
24.00 mi12:53:112:51:017:086:48
6:48
-0:19
40K
24.85 mi12:59:032:56:537:075:52
6:52
+0:04
25.2M
25.20 mi13:01:382:59:287:072:35
7:29
+0:37
Finish
26.22 mi13:08:253:06:157:076:47
6:39
-0:50

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

6:39 /mi

Average Pace

7:07 /mi

Slowest Pace

7:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:34

81% of race

Time at Steady Pace

10:04

5% of race

Time at Slower Pace

24:37

13% of race

Average Pace: 7:06 /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 mi10:23:4321:336:5621:33
6:56
#5837
10K
6.21 mi10:45:0842:586:5521:25
6:54
#5929
15K
9.32 mi11:06:341:04:246:5521:26
6:54
#5915
20K
12.43 mi11:29:051:26:557:0022:31
7:15
#6317
Half
13.11 mi11:33:461:31:366:594:41
6:52
#6286
25K
15.53 mi11:50:411:48:316:5916:55
6:59
#6121
30K
18.64 mi12:15:182:13:087:0924:37
7:55
#6629
20M
20.00 mi12:24:532:22:437:089:35
7:03
#6441
21M
21.00 mi12:32:222:30:127:097:29
7:29
#6300
35K
21.75 mi12:37:282:35:187:085:06
6:49
#6213
23M
23.00 mi12:46:232:44:137:088:55
7:07
#6043
24M
24.00 mi12:53:112:51:017:086:48
6:48
#5877
40K
24.85 mi12:59:032:56:537:075:52
6:52
#5736
25.2M
25.20 mi13:01:382:59:287:072:35
7:29
#5688
Finish
26.22 mi13:08:253:06:157:076:47
6:39
#5529
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5837535353535949(Top 22%)5424(Top 36%)5424(Top 103%)
10K6.21 mi3.10 mi5929-925432-795432-796069(Top 23%)5516(Top 36%)5516(Top 104%)
15K9.32 mi3.11 mi5915+145411+215411+215949(Top 22%)5424(Top 36%)5424(Top 103%)
20K12.43 mi3.11 mi6317-4025719-3085719-3087395(Top 28%)6486(Top 43%)6486(Top 123%)
Half13.11 mi0.68 mi6286+315696+235696+235751(Top 22%)5283(Top 35%)5283(Top 100%)
25K15.53 mi2.42 mi6121+1655574+1225574+1225439(Top 20%)5010(Top 33%)5010(Top 95%)
30K18.64 mi3.11 mi6629-5085937-3635937-36310299(Top 39%)7977(Top 53%)7977(Top 151%)
20M20.00 mi1.36 mi6441+1885785+1525785+1524357(Top 16%)4017(Top 26%)4017(Top 76%)
21M21.00 mi1.00 mi6300+1415669+1165669+1164508(Top 17%)4110(Top 27%)4110(Top 78%)
35K21.75 mi0.75 mi6213+875601+685601+684337(Top 16%)3972(Top 26%)3972(Top 75%)
23M23.00 mi1.25 mi6043+1705452+1495452+1494406(Top 17%)4015(Top 26%)4015(Top 76%)
24M24.00 mi1.00 mi5877+1665312+1405312+1403674(Top 14%)3373(Top 22%)3373(Top 64%)
40K24.85 mi0.85 mi5736+1415195+1175195+1173149(Top 12%)2893(Top 19%)2893(Top 55%)
25.2M25.20 mi0.35 mi5688+485151+445151+443884(Top 15%)3474(Top 23%)3474(Top 66%)
Finish26.22 mi1.02 mi5529+1595023+1285023+1283294(Top 12%)2966(Top 20%)2966(Top 56%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21stories
+97ft-345ft

Overall

5949

Males

5424

M18-39

5424

5K→10K

3.1 - 6.2 mi

Top 23%
×5stories
+79ft-138ft

Overall

6069

Males

5516

M18-39

5516

10K→15K

6.2 - 9.3 mi

Top 22%
×3stories
+67ft-78ft

Overall

5949

Males

5424

M18-39

5424

15K→20K

9.3 - 12.4 mi

Top 28%
×5stories
+106ft-86ft

Overall

7395

Males

6486

M18-39

6486

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

5751

Males

5283

M18-39

5283

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5439

Males

5010

M18-39

5010

25K→30K

15.5 - 18.6 mi

Top 39%
×9stories
+181ft-148ft

Overall

10299

Males

7977

M18-39

7977

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4357

Males

4017

M18-39

4017

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4508

Males

4110

M18-39

4110

21M→35K

21.0 - 21.8 mi

Top 16%
×7stories
+17ft-86ft

Overall

4337

Males

3972

M18-39

3972

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4406

Males

4015

M18-39

4015

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3674

Males

3373

M18-39

3373

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3149

Males

2893

M18-39

2893

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

3884

Males

3474

M18-39

3474

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3294

Males

2966

M18-39

2966

Passing Analysis

Category:
Athletes Passed
1680
Passed By
1372
Net Change
+308
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5837
5K → 10K145237-92#5837#5929
10K → 15K138124+14#5929#5915
15K → 20K22424-402#5915#6317
20K → Half343+31#6317#6286
Half → 25K18217+165#6286#6121
25K → 30K34542-508#6121#6629
30K → 20M1902+188#6629#6441
20M → 21M1509+141#6441#6300
21M → 35K892+87#6300#6213
35K → 23M1733+170#6213#6043
23M → 24M1682+166#6043#5877
24M → 40K1432+141#5877#5736
40K → 25.2M502+48#5736#5688
25.2M → Finish1623+159#5688#5529
TOTALS16801372+308
📊

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