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BOSTON MARATHON 2023

Jim Westphal

Bib: 21235•M

KY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:04
Rank: #20597
Start → 5K
28:04 | 9:02/mi
10K· 6.21 mi
55:15
Rank: #20149 (+448)
5K → 10K
27:11 | 8:45/mi
15K· 9.32 mi
1:22:26
Rank: #19831 (+318)
10K → 15K
27:11 | 8:45/mi
20K· 12.43 mi
1:50:02
Rank: #19607 (+224)
15K → 20K
27:36 | 8:53/mi
Half· 13.11 mi
1:55:59
Rank: #19577 (+30)
20K → Half
5:57 | 8:43/mi
25K· 15.53 mi
2:17:21
Rank: #19316 (+261)
Half → 25K
21:22 | 8:49/mi
30K· 18.64 mi
2:45:12
Rank: #18894 (+422)
25K → 30K
27:51 | 8:58/mi
20M
2:57:29
Rank: #18751 (+143)
30K → 20M
12:17 | 9:02/mi
21M
3:07:22
Rank: #18651 (+100)
20M → 21M
9:53 | 9:53/mi
35K· 21.75 mi
3:14:10
Rank: #18631 (+20)
21M → 35K
6:48 | 9:05/mi
23M
3:25:38
Rank: #18520 (+111)
35K → 23M
11:28 | 9:09/mi
24M
3:34:37
Rank: #18462 (+58)
23M → 24M
8:59 | 8:59/mi
40K· 24.85 mi
3:42:17
Rank: #18364 (+98)
24M → 40K
7:40 | 8:58/mi
25.2M
3:45:39
Rank: #18340 (+24)
40K → 25.2M
3:22 | 9:46/mi
Finish· 26.22 mi
3:54:15
Rank: #18217 (+123)
25.2M → Finish
8:36 | 8:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:59
Pace8:51 /mi
2nd Half
Distance13.11 mi
Time1:58:16
Pace9:01 /mi
📊Positive Split: 2.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:0528:049:0228:04
9:02
-
10K
6.21 mi11:48:1655:158:5327:11
8:45
-0:17
15K
9.32 mi12:15:271:22:268:5127:11
8:45
0:00
20K
12.43 mi12:43:031:50:028:5127:36
8:53
+0:08
Half
13.11 mi12:49:001:55:598:515:57
8:43
-0:10
25K
15.53 mi13:10:222:17:218:5121:22
8:49
+0:06
30K
18.64 mi13:38:132:45:128:5227:51
8:58
+0:09
20M
20.00 mi13:50:302:57:298:5212:17
9:02
+0:04
21M
21.00 mi14:00:233:07:228:559:53
9:53
+0:51
35K
21.75 mi14:07:113:14:108:566:48
9:05
-0:48
23M
23.00 mi14:18:393:25:388:5611:28
9:09
+0:04
24M
24.00 mi14:27:383:34:378:578:59
8:59
-0:10
40K
24.85 mi14:35:183:42:178:577:40
8:58
-0:01
25.2M
25.20 mi14:38:403:45:398:573:22
9:46
+0:48
Finish
26.22 mi14:47:163:54:158:568:36
8:26
-1:20

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

8:26 /mi

Average Pace

8:56 /mi

Slowest Pace

9:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:41:00

94% of race

Time at Steady Pace

13:15

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:56 /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 mi11:21:0528:049:0228:04
9:02
#20597
10K
6.21 mi11:48:1655:158:5327:11
8:45
#20149
15K
9.32 mi12:15:271:22:268:5127:11
8:45
#19831
20K
12.43 mi12:43:031:50:028:5127:36
8:53
#19607
Half
13.11 mi12:49:001:55:598:515:57
8:43
#19577
25K
15.53 mi13:10:222:17:218:5121:22
8:49
#19316
30K
18.64 mi13:38:132:45:128:5227:51
8:58
#18894
20M
20.00 mi13:50:302:57:298:5212:17
9:02
#18751
21M
21.00 mi14:00:233:07:228:559:53
9:53
#18651
35K
21.75 mi14:07:113:14:108:566:48
9:05
#18631
23M
23.00 mi14:18:393:25:388:5611:28
9:09
#18520
24M
24.00 mi14:27:383:34:378:578:59
8:59
#18462
40K
24.85 mi14:35:183:42:178:577:40
8:58
#18364
25.2M
25.20 mi14:38:403:45:398:573:22
9:46
#18340
Finish
26.22 mi14:47:163:54:158:568:36
8:26
#18217
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi20597124061240619217(Top 72%)11969(Top 79%)11969(Top 1078%)
10K6.21 mi3.10 mi20149+44812279+12712279+12719667(Top 74%)12154(Top 80%)12154(Top 1095%)
15K9.32 mi3.11 mi19831+31812172+10712172+10719217(Top 72%)11969(Top 79%)11969(Top 1078%)
20K12.43 mi3.11 mi19607+22412094+7812094+7819127(Top 72%)11935(Top 79%)11935(Top 1075%)
Half13.11 mi0.68 mi19577+3012082+1212082+1219019(Top 71%)11895(Top 78%)11895(Top 1072%)
25K15.53 mi2.42 mi19316+26111980+10211980+10218016(Top 68%)11437(Top 75%)11437(Top 1030%)
30K18.64 mi3.11 mi18894+42211799+18111799+18116975(Top 64%)10904(Top 72%)10904(Top 982%)
20M20.00 mi1.36 mi18751+14311722+7711722+7716741(Top 63%)10723(Top 71%)10723(Top 966%)
21M21.00 mi1.00 mi18651+10011673+4911673+4917562(Top 66%)11036(Top 73%)11036(Top 994%)
35K21.75 mi0.75 mi18631+2011660+1311660+1318250(Top 69%)11252(Top 74%)11252(Top 1014%)
23M23.00 mi1.25 mi18520+11111592+6811592+6816842(Top 63%)10620(Top 70%)10620(Top 957%)
24M24.00 mi1.00 mi18462+5811556+3611556+3617141(Top 64%)10687(Top 70%)10687(Top 963%)
40K24.85 mi0.85 mi18364+9811497+5911497+5915954(Top 60%)10115(Top 67%)10115(Top 911%)
25.2M25.20 mi0.35 mi18340+2411481+1611481+1616349(Top 61%)10272(Top 68%)10272(Top 925%)
Finish26.22 mi1.02 mi18217+12311419+6211419+6214991(Top 56%)9733(Top 64%)9733(Top 877%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

19217

Males

11969

M60-64

11969

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

19667

Males

12154

M60-64

12154

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

19217

Males

11969

M60-64

11969

15K→20K

9.3 - 12.4 mi

Top 72%
×5stories
+106ft-86ft

Overall

19127

Males

11935

M60-64

11935

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

19019

Males

11895

M60-64

11895

Half→25K

13.1 - 15.5 mi

Top 68%
×4stories
+66ft-88ft

Overall

18016

Males

11437

M60-64

11437

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

16975

Males

10904

M60-64

10904

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

16741

Males

10723

M60-64

10723

20M→21M

20.0 - 21.0 mi

Top 66%
×8stories
+106ft-24ft

Overall

17562

Males

11036

M60-64

11036

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

18250

Males

11252

M60-64

11252

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

16842

Males

10620

M60-64

10620

23M→24M

23.0 - 24.0 mi

Top 64%
×6stories
+12ft-82ft

Overall

17141

Males

10687

M60-64

10687

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

15954

Males

10115

M60-64

10115

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

16349

Males

10272

M60-64

10272

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

14991

Males

9733

M60-64

9733

Passing Analysis

Category:
Athletes Passed
2921
Passed By
541
Net Change
+2380
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20597
5K → 10K604156+448#20597#20149
10K → 15K39173+318#20149#19831
15K → 20K29672+224#19831#19607
20K → Half4515+30#19607#19577
Half → 25K29029+261#19577#19316
25K → 30K44119+422#19316#18894
30K → 20M16724+143#18894#18751
20M → 21M13939+100#18751#18651
21M → 35K5333+20#18651#18631
35K → 23M13524+111#18631#18520
23M → 24M8527+58#18520#18462
24M → 40K11012+98#18462#18364
40K → 25.2M3410+24#18364#18340
25.2M → Finish1318+123#18340#18217
TOTALS2921541+2380
📊

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