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BOSTON MARATHON 2023

Jeffrey Burch

Bib: 7298•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 38%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 42%
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:25
Rank: #9950
Start → 5K
23:25 | 7:32/mi
10K· 6.21 mi
46:27
Rank: #9794 (+156)
5K → 10K
23:02 | 7:25/mi
15K· 9.32 mi
1:09:51
Rank: #9979 (-185)
10K → 15K
23:24 | 7:32/mi
20K· 12.43 mi
1:33:42
Rank: #10186 (-207)
15K → 20K
23:51 | 7:41/mi
Half· 13.11 mi
1:38:51
Rank: #10198 (-12)
20K → Half
5:09 | 7:33/mi
25K· 15.53 mi
1:57:27
Rank: #10148 (+50)
Half → 25K
18:36 | 7:40/mi
30K· 18.64 mi
2:21:56
Rank: #10080 (+68)
25K → 30K
24:29 | 7:53/mi
20M
2:32:53
Rank: #10107 (-27)
30K → 20M
10:57 | 8:03/mi
21M
2:41:17
Rank: #10056 (+51)
20M → 21M
8:24 | 8:24/mi
35K· 21.75 mi
2:47:02
Rank: #10024 (+32)
21M → 35K
5:45 | 7:41/mi
23M
2:57:24
Rank: #10121 (-97)
35K → 23M
10:22 | 8:17/mi
24M
3:05:16
Rank: #10102 (+19)
23M → 24M
7:52 | 7:52/mi
40K· 24.85 mi
3:11:57
Rank: #10020 (+82)
24M → 40K
6:41 | 7:49/mi
25.2M
3:15:01
Rank: #10034 (-14)
40K → 25.2M
3:04 | 8:54/mi
Finish· 26.22 mi
3:23:13
Rank: #10115 (-81)
25.2M → Finish
8:12 | 8:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:51
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:44:22
Pace7:58 /mi
📊Positive Split: 5.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:2523:257:3223:25
7:32
-
10K
6.21 mi11:12:2746:277:2923:02
7:25
-0:07
15K
9.32 mi11:35:511:09:517:3023:24
7:32
+0:07
20K
12.43 mi11:59:421:33:427:3223:51
7:41
+0:09
Half
13.11 mi12:04:511:38:517:325:09
7:33
-0:08
25K
15.53 mi12:23:271:57:277:3418:36
7:40
+0:07
30K
18.64 mi12:47:562:21:567:3724:29
7:53
+0:13
20M
20.00 mi12:58:532:32:537:3910:57
8:03
+0:10
21M
21.00 mi13:07:172:41:177:418:24
8:24
+0:21
35K
21.75 mi13:13:022:47:027:415:45
7:41
-0:43
23M
23.00 mi13:23:242:57:247:4310:22
8:17
+0:36
24M
24.00 mi13:31:163:05:167:437:52
7:52
-0:25
40K
24.85 mi13:37:573:11:577:436:41
7:49
-0:03
25.2M
25.20 mi13:41:013:15:017:443:04
8:54
+1:05
Finish
26.22 mi13:49:133:23:137:458:12
8:03
-0:51

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

7:25 /mi

Average Pace

7:45 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:01:23

89% of race

Time at Steady Pace

18:46

9% of race

Time at Slower Pace

3:04

2% of race

Average Pace: 7:45 /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 mi10:49:2523:257:3223:25
7:32
#9950
10K
6.21 mi11:12:2746:277:2923:02
7:25
#9794
15K
9.32 mi11:35:511:09:517:3023:24
7:32
#9979
20K
12.43 mi11:59:421:33:427:3223:51
7:41
#10186
Half
13.11 mi12:04:511:38:517:325:09
7:33
#10198
25K
15.53 mi12:23:271:57:277:3418:36
7:40
#10148
30K
18.64 mi12:47:562:21:567:3724:29
7:53
#10080
20M
20.00 mi12:58:532:32:537:3910:57
8:03
#10107
21M
21.00 mi13:07:172:41:177:418:24
8:24
#10056
35K
21.75 mi13:13:022:47:027:415:45
7:41
#10024
23M
23.00 mi13:23:242:57:247:4310:22
8:17
#10121
24M
24.00 mi13:31:163:05:167:437:52
7:52
#10102
40K
24.85 mi13:37:573:11:577:436:41
7:49
#10020
25.2M
25.20 mi13:41:013:15:017:443:04
8:54
#10034
Finish
26.22 mi13:49:133:23:137:458:12
8:03
#10115
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi99508102810210423(Top 39%)8370(Top 55%)8370(Top 373%)
10K6.21 mi3.10 mi9794+1568043+598043+599743(Top 37%)8025(Top 53%)8025(Top 358%)
15K9.32 mi3.11 mi9979-1858151-1088151-10810423(Top 39%)8370(Top 55%)8370(Top 373%)
20K12.43 mi3.11 mi10186-2078254-1038254-10310711(Top 40%)8432(Top 56%)8432(Top 376%)
Half13.11 mi0.68 mi10198-128255-18255-110549(Top 40%)8371(Top 55%)8371(Top 374%)
25K15.53 mi2.42 mi10148+508207+488207+4810066(Top 38%)8024(Top 53%)8024(Top 358%)
30K18.64 mi3.11 mi10080+688138+698138+699975(Top 37%)7813(Top 51%)7813(Top 349%)
20M20.00 mi1.36 mi10107-278116+228116+2210673(Top 40%)8084(Top 53%)8084(Top 361%)
21M21.00 mi1.00 mi10056+518067+498067+499830(Top 37%)7516(Top 50%)7516(Top 335%)
35K21.75 mi0.75 mi10024+328027+408027+409819(Top 37%)7532(Top 50%)7532(Top 336%)
23M23.00 mi1.25 mi10121-978052-258052-2511710(Top 44%)8328(Top 55%)8328(Top 372%)
24M24.00 mi1.00 mi10102+198015+378015+3710254(Top 39%)7527(Top 50%)7527(Top 336%)
40K24.85 mi0.85 mi10020+827937+787937+788780(Top 33%)6704(Top 44%)6704(Top 299%)
25.2M25.20 mi0.35 mi10034-147931+67931+611811(Top 44%)8154(Top 54%)8154(Top 364%)
Finish26.22 mi1.02 mi10115-817950-197950-1912408(Top 47%)8476(Top 56%)8476(Top 378%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21stories
+97ft-345ft

Overall

10423

Males

8370

M40-44

8370

5K→10K

3.1 - 6.2 mi

Top 37%
×5stories
+79ft-138ft

Overall

9743

Males

8025

M40-44

8025

10K→15K

6.2 - 9.3 mi

Top 39%
×3stories
+67ft-78ft

Overall

10423

Males

8370

M40-44

8370

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

10711

Males

8432

M40-44

8432

20K→Half

12.4 - 13.1 mi

Top 40%
×2stories
+19ft-37ft

Overall

10549

Males

8371

M40-44

8371

Half→25K

13.1 - 15.5 mi

Top 38%
×4stories
+66ft-88ft

Overall

10066

Males

8024

M40-44

8024

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

9975

Males

7813

M40-44

7813

30K→20M

18.6 - 20.0 mi

Top 40%
×5stories
+64ft-50ft

Overall

10673

Males

8084

M40-44

8084

20M→21M

20.0 - 21.0 mi

Top 37%
×8stories
+106ft-24ft

Overall

9830

Males

7516

M40-44

7516

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

9819

Males

7532

M40-44

7532

35K→23M

21.8 - 23.0 mi

Top 44%
×5stories
+23ft-63ft

Overall

11710

Males

8328

M40-44

8328

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

10254

Males

7527

M40-44

7527

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8780

Males

6704

M40-44

6704

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11811

Males

8154

M40-44

8154

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2stories
+22ft-21ft

Overall

12408

Males

8476

M40-44

8476

Passing Analysis

Category:
Athletes Passed
1543*
Passed By
1706
Net Change
-165
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9950
5K → 10K401245+156#9950#9794
10K → 15K114298-185#9794#9979
15K → 20K100307-207#9979#10186
20K → Half2739-12#10186#10198
Half → 25K154104+50#10198#10148
25K → 30K193*125+68#10148#10080
30K → 20M76103-27#10080#10107
20M → 21M10655+51#10107#10056
21M → 35K64*32+32#10056#10024
35K → 23M53150-97#10024#10121
23M → 24M7656+19#10121#10102
24M → 40K10422+82#10102#10020
40K → 25.2M3347-14#10020#10034
25.2M → Finish42123-81#10034#10115
TOTALS1543*1706-165

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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