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BOSTON MARATHON 2023

William Ernst

Bib: 9549•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 31%
Gender (Male)
#0 / 15176
Top 45%
Masters (Masters Men)
#0 / 9891
Top 33%
Division (M45-49)
#0 / 2252
Top 44%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:09
Rank: #7063
Start → 5K
22:09 | 7:08/mi
10K· 6.21 mi
43:42
Rank: #6694 (+369)
5K → 10K
21:33 | 6:56/mi
15K· 9.32 mi
1:05:23
Rank: #6591 (+103)
10K → 15K
21:41 | 6:59/mi
20K· 12.43 mi
1:27:27
Rank: #6555 (+36)
15K → 20K
22:04 | 7:06/mi
Half· 13.11 mi
1:32:15
Rank: #6572 (-17)
20K → Half
4:48 | 7:02/mi
25K· 15.53 mi
1:49:52
Rank: #6630 (-58)
Half → 25K
17:37 | 7:16/mi
30K· 18.64 mi
2:13:59
Rank: #6922 (-292)
25K → 30K
24:07 | 7:46/mi
20M
2:24:55
Rank: #7092 (-170)
30K → 20M
10:56 | 8:03/mi
21M
2:33:31
Rank: #7262 (-170)
20M → 21M
8:36 | 8:36/mi
35K· 21.75 mi
2:39:30
Rank: #7399 (-137)
21M → 35K
5:59 | 8:00/mi
23M
2:49:56
Rank: #7602 (-203)
35K → 23M
10:26 | 8:20/mi
24M
2:58:27
Rank: #7910 (-308)
23M → 24M
8:31 | 8:31/mi
40K· 24.85 mi
3:05:32
Rank: #8032 (-122)
24M → 40K
7:05 | 8:17/mi
25.2M
3:08:33
Rank: #8075 (-43)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
3:16:34
Rank: #8174 (-99)
25.2M → Finish
8:01 | 7:52/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:15
Pace7:02 /mi
2nd Half
Distance13.11 mi
Time1:44:19
Pace7:57 /mi
📊Positive Split: 13.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:5022:097:0822:09
7:08
-
10K
6.21 mi11:09:2343:427:0221:33
6:56
-0:12
15K
9.32 mi11:31:041:05:237:0121:41
6:59
+0:03
20K
12.43 mi11:53:081:27:277:0222:04
7:06
+0:07
Half
13.11 mi11:57:561:32:157:024:48
7:02
-0:04
25K
15.53 mi12:15:331:49:527:0417:37
7:16
+0:14
30K
18.64 mi12:39:402:13:597:1124:07
7:46
+0:30
20M
20.00 mi12:50:362:24:557:1510:56
8:03
+0:17
21M
21.00 mi12:59:122:33:317:198:36
8:36
+0:33
35K
21.75 mi13:05:112:39:307:205:59
8:00
-0:36
23M
23.00 mi13:15:372:49:567:2310:26
8:20
+0:20
24M
24.00 mi13:24:082:58:277:268:31
8:31
+0:11
40K
24.85 mi13:31:133:05:327:287:05
8:17
-0:14
25.2M
25.20 mi13:34:143:08:337:293:01
8:45
+0:28
Finish
26.22 mi13:42:153:16:347:308:01
7:52
-0:53

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

6:56 /mi

Average Pace

7:30 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:52

56% of race

Time at Steady Pace

49:03

25% of race

Time at Slower Pace

37:39

19% of race

Average Pace: 7:30 /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 mi10:47:5022:097:0822:09
7:08
#7063
10K
6.21 mi11:09:2343:427:0221:33
6:56
#6694
15K
9.32 mi11:31:041:05:237:0121:41
6:59
#6591
20K
12.43 mi11:53:081:27:277:0222:04
7:06
#6555
Half
13.11 mi11:57:561:32:157:024:48
7:02
#6572
25K
15.53 mi12:15:331:49:527:0417:37
7:16
#6630
30K
18.64 mi12:39:402:13:597:1124:07
7:46
#6922
20M
20.00 mi12:50:362:24:557:1510:56
8:03
#7092
21M
21.00 mi12:59:122:33:317:198:36
8:36
#7262
35K
21.75 mi13:05:112:39:307:205:59
8:00
#7399
23M
23.00 mi13:15:372:49:567:2310:26
8:20
#7602
24M
24.00 mi13:24:082:58:277:268:31
8:31
#7910
40K
24.85 mi13:31:133:05:327:287:05
8:17
#8032
25.2M
25.20 mi13:34:143:08:337:293:01
8:45
#8075
Finish
26.22 mi13:42:153:16:347:308:01
7:52
#8174
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi7063631763176436(Top 24%)5805(Top 38%)5805(Top 258%)
10K6.21 mi3.10 mi6694+3696030+2876030+2876399(Top 24%)5779(Top 38%)5779(Top 257%)
15K9.32 mi3.11 mi6591+1035945+855945+856436(Top 24%)5805(Top 38%)5805(Top 258%)
20K12.43 mi3.11 mi6555+365904+415904+416570(Top 25%)5892(Top 39%)5892(Top 262%)
Half13.11 mi0.68 mi6572-175913-95913-96772(Top 25%)6079(Top 40%)6079(Top 270%)
25K15.53 mi2.42 mi6630-585954-415954-417066(Top 27%)6206(Top 41%)6206(Top 276%)
30K18.64 mi3.11 mi6922-2926153-1996153-1999051(Top 34%)7311(Top 48%)7311(Top 325%)
20M20.00 mi1.36 mi7092-1706276-1236276-12310569(Top 40%)8025(Top 53%)8025(Top 356%)
21M21.00 mi1.00 mi7262-1706370-946370-9411026(Top 41%)8120(Top 54%)8120(Top 361%)
35K21.75 mi0.75 mi7399-1376444-746444-7412050(Top 45%)8559(Top 56%)8559(Top 380%)
23M23.00 mi1.25 mi7602-2036560-1166560-11612095(Top 45%)8504(Top 56%)8504(Top 378%)
24M24.00 mi1.00 mi7910-3086728-1686728-16814529(Top 55%)9526(Top 63%)9526(Top 423%)
40K24.85 mi0.85 mi8032-1226786-586786-5811874(Top 45%)8253(Top 54%)8253(Top 366%)
25.2M25.20 mi0.35 mi8075-436806-206806-2010932(Top 41%)7743(Top 51%)7743(Top 344%)
Finish26.22 mi1.02 mi8174-996844-386844-3811111(Top 42%)7835(Top 52%)7835(Top 348%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21stories
+97ft-345ft

Overall

6436

Males

5805

M45-49

5805

5K→10K

3.1 - 6.2 mi

Top 24%
×5stories
+79ft-138ft

Overall

6399

Males

5779

M45-49

5779

10K→15K

6.2 - 9.3 mi

Top 24%
×3stories
+67ft-78ft

Overall

6436

Males

5805

M45-49

5805

15K→20K

9.3 - 12.4 mi

Top 25%
×5stories
+106ft-86ft

Overall

6570

Males

5892

M45-49

5892

20K→Half

12.4 - 13.1 mi

Top 25%
×2stories
+19ft-37ft

Overall

6772

Males

6079

M45-49

6079

Half→25K

13.1 - 15.5 mi

Top 27%
×4stories
+66ft-88ft

Overall

7066

Males

6206

M45-49

6206

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

9051

Males

7311

M45-49

7311

30K→20M

18.6 - 20.0 mi

Top 40%
×5stories
+64ft-50ft

Overall

10569

Males

8025

M45-49

8025

20M→21M

20.0 - 21.0 mi

Top 41%
×8stories
+106ft-24ft

Overall

11026

Males

8120

M45-49

8120

21M→35K

21.0 - 21.8 mi

Top 45%
×7stories
+17ft-86ft

Overall

12050

Males

8559

M45-49

8559

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

12095

Males

8504

M45-49

8504

23M→24M

23.0 - 24.0 mi

Top 55%
×6stories
+12ft-82ft

Overall

14529

Males

9526

M45-49

9526

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

11874

Males

8253

M45-49

8253

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

10932

Males

7743

M45-49

7743

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2stories
+22ft-21ft

Overall

11111

Males

7835

M45-49

7835

Passing Analysis

Category:
Athletes Passed
1019
Passed By
2130
Net Change
-1111
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7063
5K → 10K43364+369#7063#6694
10K → 15K16360+103#6694#6591
15K → 20K12690+36#6591#6555
20K → Half1229-17#6555#6572
Half → 25K55113-58#6572#6630
25K → 30K46338-292#6630#6922
30K → 20M19189-170#6922#7092
20M → 21M23193-170#7092#7262
21M → 35K16153-137#7262#7399
35K → 23M33236-203#7399#7602
23M → 24M17325-308#7602#7910
24M → 40K31153-122#7910#8032
40K → 25.2M1558-43#8032#8075
25.2M → Finish30129-99#8075#8174
TOTALS10192130-1111
📊

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