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BOSTON MARATHON 2023

Michael Bertsch

Bib: 1491•M

LA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 6%
Gender (Male)
#0 / 15176
Top 11%
Division (M18-39)
#0 / 5285
Top 25%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:09
Rank: #2192
Start → 5K
20:09 | 6:29/mi
10K· 6.21 mi
40:01
Rank: #2182 (+10)
5K → 10K
19:52 | 6:24/mi
15K· 9.32 mi
59:49
Rank: #2088 (+94)
10K → 15K
19:48 | 6:22/mi
20K· 12.43 mi
1:19:40
Rank: #1985 (+103)
15K → 20K
19:51 | 6:23/mi
Half· 13.11 mi
1:24:01
Rank: #1986 (-1)
20K → Half
4:21 | 6:23/mi
25K· 15.53 mi
1:39:36
Rank: #1939 (+47)
Half → 25K
15:35 | 6:26/mi
30K· 18.64 mi
1:59:46
Rank: #1848 (+91)
25K → 30K
20:10 | 6:29/mi
20M
2:08:29
Rank: #1764 (+84)
30K → 20M
8:43 | 6:25/mi
21M
2:15:06
Rank: #1696 (+68)
20M → 21M
6:37 | 6:37/mi
35K· 21.75 mi
2:19:53
Rank: #1692 (+4)
21M → 35K
4:47 | 6:24/mi
23M
2:28:03
Rank: #1672 (+20)
35K → 23M
8:10 | 6:31/mi
24M
2:34:36
Rank: #1676 (-4)
23M → 24M
6:33 | 6:33/mi
40K· 24.85 mi
2:40:24
Rank: #1682 (-6)
24M → 40K
5:48 | 6:47/mi
25.2M
2:42:41
Rank: #1650 (+32)
40K → 25.2M
2:17 | 6:37/mi
Finish· 26.22 mi
2:49:25
Rank: #1678 (-28)
25.2M → Finish
6:44 | 6:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:01
Pace6:25 /mi
2nd Half
Distance13.11 mi
Time1:25:24
Pace6:31 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:4020:096:2920:09
6:29
-
10K
6.21 mi10:40:3240:016:2619:52
6:24
-0:05
15K
9.32 mi11:00:2059:496:2519:48
6:22
-0:02
20K
12.43 mi11:20:111:19:406:2519:51
6:23
+0:01
Half
13.11 mi11:24:321:24:016:254:21
6:23
0:00
25K
15.53 mi11:40:071:39:366:2515:35
6:26
+0:03
30K
18.64 mi12:00:171:59:466:2520:10
6:29
+0:03
20M
20.00 mi12:09:002:08:296:258:43
6:25
-0:04
21M
21.00 mi12:15:372:15:066:266:37
6:37
+0:12
35K
21.75 mi12:20:242:19:536:264:47
6:24
-0:13
23M
23.00 mi12:28:342:28:036:268:10
6:31
+0:07
24M
24.00 mi12:35:072:34:366:276:33
6:33
+0:02
40K
24.85 mi12:40:552:40:246:275:48
6:47
+0:14
25.2M
25.20 mi12:43:122:42:416:272:17
6:37
-0:10
Finish
26.22 mi12:49:562:49:256:286:44
6:37
0:00

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

6:22 /mi

Average Pace

6:28 /mi

Slowest Pace

6:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:37

97% of race

Time at Steady Pace

5:48

3% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:28 /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 mi10:20:4020:096:2920:09
6:29
#2192
10K
6.21 mi10:40:3240:016:2619:52
6:24
#2182
15K
9.32 mi11:00:2059:496:2519:48
6:22
#2088
20K
12.43 mi11:20:111:19:406:2519:51
6:23
#1985
Half
13.11 mi11:24:321:24:016:254:21
6:23
#1986
25K
15.53 mi11:40:071:39:366:2515:35
6:26
#1939
30K
18.64 mi12:00:171:59:466:2520:10
6:29
#1848
20M
20.00 mi12:09:002:08:296:258:43
6:25
#1764
21M
21.00 mi12:15:372:15:066:266:37
6:37
#1696
35K
21.75 mi12:20:242:19:536:264:47
6:24
#1692
23M
23.00 mi12:28:342:28:036:268:10
6:31
#1672
24M
24.00 mi12:35:072:34:366:276:33
6:33
#1676
40K
24.85 mi12:40:552:40:246:275:48
6:47
#1682
25.2M
25.20 mi12:43:122:42:416:272:17
6:37
#1650
Finish
26.22 mi12:49:562:49:256:286:44
6:37
#1678
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2192209120911960(Top 7%)1876(Top 12%)1876(Top 35%)
10K6.21 mi3.10 mi2182+102089+22089+22211(Top 8%)2117(Top 14%)2117(Top 40%)
15K9.32 mi3.11 mi2088+942002+872002+871960(Top 7%)1876(Top 12%)1876(Top 35%)
20K12.43 mi3.11 mi1985+1031901+1011901+1011748(Top 7%)1674(Top 11%)1674(Top 32%)
Half13.11 mi0.68 mi1986-11902-11902-12076(Top 8%)1992(Top 13%)1992(Top 38%)
25K15.53 mi2.42 mi1939+471857+451857+451825(Top 7%)1748(Top 12%)1748(Top 33%)
30K18.64 mi3.11 mi1848+911769+881769+881526(Top 6%)1461(Top 10%)1461(Top 28%)
20M20.00 mi1.36 mi1764+841687+821687+821190(Top 4%)1134(Top 7%)1134(Top 21%)
21M21.00 mi1.00 mi1696+681622+651622+65910(Top 3%)864(Top 6%)864(Top 16%)
35K21.75 mi0.75 mi1692+41619+31619+31930(Top 7%)1834(Top 12%)1834(Top 35%)
23M23.00 mi1.25 mi1672+201599+201599+201508(Top 6%)1433(Top 9%)1433(Top 27%)
24M24.00 mi1.00 mi1676-41603-41603-42288(Top 9%)2139(Top 14%)2139(Top 40%)
40K24.85 mi0.85 mi1682-61607-41607-42716(Top 10%)2502(Top 16%)2502(Top 47%)
25.2M25.20 mi0.35 mi1650+321575+321575+32658(Top 2%)623(Top 4%)623(Top 12%)
Finish26.22 mi1.02 mi1678-281602-271602-273057(Top 11%)2752(Top 18%)2752(Top 52%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1960

Males

1876

M18-39

1876

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2211

Males

2117

M18-39

2117

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1960

Males

1876

M18-39

1876

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

1748

Males

1674

M18-39

1674

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2076

Males

1992

M18-39

1992

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1825

Males

1748

M18-39

1748

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1526

Males

1461

M18-39

1461

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1190

Males

1134

M18-39

1134

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

910

Males

864

M18-39

864

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1930

Males

1834

M18-39

1834

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1508

Males

1433

M18-39

1433

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2288

Males

2139

M18-39

2139

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2716

Males

2502

M18-39

2502

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

658

Males

623

M18-39

623

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3057

Males

2752

M18-39

2752

Passing Analysis

Category:
Athletes Passed
862
Passed By
348
Net Change
+514
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2192
5K → 10K119109+10#2192#2182
10K → 15K12026+94#2182#2088
15K → 20K11815+103#2088#1985
20K → Half1213-1#1985#1986
Half → 25K6518+47#1986#1939
25K → 30K10817+91#1939#1848
30K → 20M895+84#1848#1764
20M → 21M680+68#1764#1696
21M → 35K1814+4#1696#1692
35K → 23M4323+20#1692#1672
23M → 24M2428-4#1672#1676
24M → 40K2733-6#1676#1682
40K → 25.2M320+32#1682#1650
25.2M → Finish1947-28#1650#1678
TOTALS862348+514
📊

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