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BOSTON MARATHON 2023

Erik Westlund

Bib: 6520•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 49%
Gender (Male)
#0 / 15176
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
26:30
Rank: #17735
Start → 5K
26:30 | 8:32/mi
10K· 6.21 mi
52:45
Rank: #17835 (-100)
5K → 10K
26:15 | 8:27/mi
15K· 9.32 mi
1:18:41
Rank: #17472 (+363)
10K → 15K
25:56 | 8:21/mi
20K· 12.43 mi
1:44:06
Rank: #16773 (+699)
15K → 20K
25:25 | 8:11/mi
Half· 13.11 mi
1:49:33
Rank: #16671 (+102)
20K → Half
5:27 | 7:59/mi
25K· 15.53 mi
2:08:57
Rank: #16035 (+636)
Half → 25K
19:24 | 8:00/mi
30K· 18.64 mi
2:34:18
Rank: #15307 (+728)
25K → 30K
25:21 | 8:10/mi
20M
2:45:09
Rank: #14948 (+359)
30K → 20M
10:51 | 7:59/mi
21M
2:53:06
Rank: #14491 (+457)
20M → 21M
7:57 | 7:57/mi
35K· 21.75 mi
2:58:49
Rank: #14317 (+174)
21M → 35K
5:43 | 7:38/mi
23M
3:08:44
Rank: #14002 (+315)
35K → 23M
9:55 | 7:55/mi
24M
3:16:35
Rank: #13809 (+193)
23M → 24M
7:51 | 7:51/mi
40K· 24.85 mi
3:23:16
Rank: #13601 (+208)
24M → 40K
6:41 | 7:49/mi
25.2M
3:26:04
Rank: #13470 (+131)
40K → 25.2M
2:48 | 8:07/mi
Finish· 26.22 mi
3:33:13
Rank: #13113 (+357)
25.2M → Finish
7:09 | 7:01/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:49:33
Pace8:21 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:43:40
Pace7:54 /mi
📊Negative Split: 5.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:2526:308:3226:30
8:32
-
10K
6.21 mi10:56:4052:458:2926:15
8:27
-0:05
15K
9.32 mi11:22:361:18:418:2725:56
8:21
-0:06
20K
12.43 mi11:48:011:44:068:2325:25
8:11
-0:10
Half
13.11 mi11:53:281:49:338:215:27
7:59
-0:12
25K
15.53 mi12:12:522:08:578:1819:24
8:00
+0:01
30K
18.64 mi12:38:132:34:188:1725:21
8:10
+0:10
20M
20.00 mi12:49:042:45:098:1510:51
7:59
-0:11
21M
21.00 mi12:57:012:53:068:157:57
7:57
-0:02
35K
21.75 mi13:02:442:58:498:135:43
7:38
-0:19
23M
23.00 mi13:12:393:08:448:129:55
7:55
+0:17
24M
24.00 mi13:20:303:16:358:117:51
7:51
-0:04
40K
24.85 mi13:27:113:23:168:116:41
7:49
-0:02
25.2M
25.20 mi13:29:593:26:048:112:48
8:07
+0:18
Finish
26.22 mi13:37:083:33:138:087:09
7:01
-1:06

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

7:01 /mi

Average Pace

8:08 /mi

Slowest Pace

8:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

12:52

6% of race

Time at Steady Pace

1:10:54

33% of race

Time at Slower Pace

2:09:27

61% of race

Average Pace: 8:08 /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 mi10:30:2526:308:3226:30
8:32
#17735
10K
6.21 mi10:56:4052:458:2926:15
8:27
#17835
15K
9.32 mi11:22:361:18:418:2725:56
8:21
#17472
20K
12.43 mi11:48:011:44:068:2325:25
8:11
#16773
Half
13.11 mi11:53:281:49:338:215:27
7:59
#16671
25K
15.53 mi12:12:522:08:578:1819:24
8:00
#16035
30K
18.64 mi12:38:132:34:188:1725:21
8:10
#15307
20M
20.00 mi12:49:042:45:098:1510:51
7:59
#14948
21M
21.00 mi12:57:012:53:068:157:57
7:57
#14491
35K
21.75 mi13:02:442:58:498:135:43
7:38
#14317
23M
23.00 mi13:12:393:08:448:129:55
7:55
#14002
24M
24.00 mi13:20:303:16:358:117:51
7:51
#13809
40K
24.85 mi13:27:113:23:168:116:41
7:49
#13601
25.2M
25.20 mi13:29:593:26:048:112:48
8:07
#13470
Finish
26.22 mi13:37:083:33:138:087:09
7:01
#13113
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi17735113171131716819(Top 63%)10989(Top 72%)10989(Top 208%)
10K6.21 mi3.10 mi17835-10011388-7111388-7117912(Top 67%)11459(Top 76%)11459(Top 217%)
15K9.32 mi3.11 mi17472+36311248+14011248+14016819(Top 63%)10989(Top 72%)10989(Top 208%)
20K12.43 mi3.11 mi16773+69910965+28310965+28314821(Top 56%)10202(Top 67%)10202(Top 193%)
Half13.11 mi0.68 mi16671+10210922+4310922+4314202(Top 53%)9974(Top 66%)9974(Top 189%)
25K15.53 mi2.42 mi16035+63610658+26410658+26412733(Top 48%)9234(Top 61%)9234(Top 175%)
30K18.64 mi3.11 mi15307+72810340+31810340+31812063(Top 45%)8833(Top 58%)8833(Top 167%)
20M20.00 mi1.36 mi14948+35910192+14810192+14810156(Top 38%)7844(Top 52%)7844(Top 148%)
21M21.00 mi1.00 mi14491+4579986+2069986+2067044(Top 26%)5900(Top 39%)5900(Top 112%)
35K21.75 mi0.75 mi14317+1749898+889898+889566(Top 36%)7403(Top 49%)7403(Top 140%)
23M23.00 mi1.25 mi14002+3159752+1469752+1469218(Top 35%)7086(Top 47%)7086(Top 134%)
24M24.00 mi1.00 mi13809+1939650+1029650+10210154(Top 38%)7488(Top 49%)7488(Top 142%)
40K24.85 mi0.85 mi13601+2089562+889562+888789(Top 33%)6713(Top 44%)6713(Top 127%)
25.2M25.20 mi0.35 mi13470+1319495+679495+677230(Top 27%)5744(Top 38%)5744(Top 109%)
Finish26.22 mi1.02 mi13113+3579332+1639332+1635317(Top 20%)4497(Top 30%)4497(Top 85%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21stories
+97ft-345ft

Overall

16819

Males

10989

M18-39

10989

5K→10K

3.1 - 6.2 mi

Top 67%
×5stories
+79ft-138ft

Overall

17912

Males

11459

M18-39

11459

10K→15K

6.2 - 9.3 mi

Top 63%
×3stories
+67ft-78ft

Overall

16819

Males

10989

M18-39

10989

15K→20K

9.3 - 12.4 mi

Top 56%
×5stories
+106ft-86ft

Overall

14821

Males

10202

M18-39

10202

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

14202

Males

9974

M18-39

9974

Half→25K

13.1 - 15.5 mi

Top 48%
×4stories
+66ft-88ft

Overall

12733

Males

9234

M18-39

9234

25K→30K

15.5 - 18.6 mi

Top 45%
×9stories
+181ft-148ft

Overall

12063

Males

8833

M18-39

8833

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10156

Males

7844

M18-39

7844

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

7044

Males

5900

M18-39

5900

21M→35K

21.0 - 21.8 mi

Top 36%
×7stories
+17ft-86ft

Overall

9566

Males

7403

M18-39

7403

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

9218

Males

7086

M18-39

7086

23M→24M

23.0 - 24.0 mi

Top 38%
×6stories
+12ft-82ft

Overall

10154

Males

7488

M18-39

7488

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8789

Males

6713

M18-39

6713

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7230

Males

5744

M18-39

5744

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2stories
+22ft-21ft

Overall

5317

Males

4497

M18-39

4497

Passing Analysis

Category:
Athletes Passed
5083
Passed By
461
Net Change
+4622
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17735
5K → 10K261361-100#17735#17835
10K → 15K43774+363#17835#17472
15K → 20K71011+699#17472#16773
20K → Half1031+102#16773#16671
Half → 25K6371+636#16671#16035
25K → 30K7313+728#16035#15307
30K → 20M3601+359#15307#14948
20M → 21M4570+457#14948#14491
21M → 35K1751+174#14491#14317
35K → 23M3194+315#14317#14002
23M → 24M1963+193#14002#13809
24M → 40K2091+208#13809#13601
40K → 25.2M1310+131#13601#13470
25.2M → Finish3570+357#13470#13113
TOTALS5083461+4622
📊

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