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BOSTON MARATHON 2023

Sebastian Tochowicz

Bib: 5492•M

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 15%
Gender (Male)
#0 / 15176
Top 25%
Masters (Masters Men)
#0 / 9891
Top 12%
Division (M45-49)
#0 / 2252
Top 14%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:11
Rank: #4846
Start → 5K
6:49/mi
21:11 split
10K· 6.21 mi
41:56
Rank: #4462 (+384)
5K → 10K
6:41/mi
20:45 split
15K· 9.32 mi
1:02:35
Rank: #4159 (+303)
10K → 15K
6:39/mi
20:39 split
20K· 12.43 mi
1:23:31
Rank: #4060 (+99)
15K → 20K
6:44/mi
20:56 split
Half· 13.11 mi
1:28:04
Rank: #4054 (+6)
20K → Half
6:40/mi
4:33 split
25K· 15.53 mi
1:44:30
Rank: #4032 (+22)
Half → 25K
6:47/mi
16:26 split
30K· 18.64 mi
2:06:29
Rank: #4165 (-133)
25K → 30K
7:05/mi
21:59 split
20M
2:16:02
Rank: #4169 (-4)
30K → 20M
7:02/mi
9:33 split
21M
2:23:31
Rank: #4170 (-1)
20M → 21M
7:29/mi
7:29 split
35K· 21.75 mi
2:28:45
Rank: #4214 (-44)
21M → 35K
7:00/mi
5:14 split
23M
2:37:42
Rank: #4233 (-19)
35K → 23M
7:09/mi
8:57 split
24M
2:44:38
Rank: #4272 (-39)
23M → 24M
6:56/mi
6:56 split
40K· 24.85 mi
2:50:29
Rank: #4188 (+84)
24M → 40K
6:51/mi
5:51 split
25.2M
2:53:02
Rank: #4177 (+11)
40K → 25.2M
7:24/mi
2:33 split
Finish· 26.22 mi
2:59:41
Rank: #4106 (+71)
25.2M → Finish
6:32/mi
6:39 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:04
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:31:37
Pace6:59 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:1221:116:4921:11
6:49
-
10K
6.21 mi10:44:5741:566:4520:45
6:41
-0:08
15K
9.32 mi11:05:361:02:356:4320:39
6:39
-0:02
20K
12.43 mi11:26:321:23:316:4320:56
6:44
+0:05
Half
13.11 mi11:31:051:28:046:434:33
6:40
-0:04
25K
15.53 mi11:47:311:44:306:4416:26
6:47
+0:07
30K
18.64 mi12:09:302:06:296:4721:59
7:05
+0:18
20M
20.00 mi12:19:032:16:026:489:33
7:02
-0:03
21M
21.00 mi12:26:322:23:316:507:29
7:29
+0:27
35K
21.75 mi12:31:462:28:456:505:14
7:00
-0:29
23M
23.00 mi12:40:432:37:426:518:57
7:09
+0:09
24M
24.00 mi12:47:392:44:386:526:56
6:56
-0:13
40K
24.85 mi12:53:302:50:296:525:51
6:51
-0:05
25.2M
25.20 mi12:56:032:53:026:522:33
7:24
+0:33
Finish
26.22 mi13:02:422:59:416:516:39
6:32
-0:52

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

6:32 /mi

Average Pace

6:51 /mi

Slowest Pace

7:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:39

94% of race

Time at Steady Pace

10:02

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:51 /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 mi10:24:1221:116:4921:11
6:49
#4846
10K
6.21 mi10:44:5741:566:4520:45
6:41
#4462
15K
9.32 mi11:05:361:02:356:4320:39
6:39
#4159
20K
12.43 mi11:26:321:23:316:4320:56
6:44
#4060
Half
13.11 mi11:31:051:28:046:434:33
6:40
#4054
25K
15.53 mi11:47:311:44:306:4416:26
6:47
#4032
30K
18.64 mi12:09:302:06:296:4721:59
7:05
#4165
20M
20.00 mi12:19:032:16:026:489:33
7:02
#4169
21M
21.00 mi12:26:322:23:316:507:29
7:29
#4170
35K
21.75 mi12:31:462:28:456:505:14
7:00
#4214
23M
23.00 mi12:40:432:37:426:518:57
7:09
#4233
24M
24.00 mi12:47:392:44:386:526:56
6:56
#4272
40K
24.85 mi12:53:302:50:296:525:51
6:51
#4188
25.2M
25.20 mi12:56:032:53:026:522:33
7:24
#4177
Finish
26.22 mi13:02:422:59:416:516:39
6:32
#4106
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi4846450545053672(Top 14%)3463(Top 23%)3463(Top 154%)
10K6.21 mi3.10 mi4462+3844173+3324173+3324150(Top 16%)3894(Top 26%)3894(Top 173%)
15K9.32 mi3.11 mi4159+3033905+2683905+2683672(Top 14%)3463(Top 23%)3463(Top 154%)
20K12.43 mi3.11 mi4060+993813+923813+923876(Top 15%)3656(Top 24%)3656(Top 162%)
Half13.11 mi0.68 mi4054+63808+53808+54046(Top 15%)3798(Top 25%)3798(Top 169%)
25K15.53 mi2.42 mi4032+223792+163792+163951(Top 15%)3712(Top 24%)3712(Top 165%)
30K18.64 mi3.11 mi4165-1333915-1233915-1234792(Top 18%)4417(Top 29%)4417(Top 196%)
20M20.00 mi1.36 mi4169-43910+53910+54189(Top 16%)3868(Top 25%)3868(Top 172%)
21M21.00 mi1.00 mi4170-13907+33907+34476(Top 17%)4078(Top 27%)4078(Top 181%)
35K21.75 mi0.75 mi4214-443943-363943-365266(Top 20%)4694(Top 31%)4694(Top 208%)
23M23.00 mi1.25 mi4233-193962-193962-194536(Top 17%)4108(Top 27%)4108(Top 182%)
24M24.00 mi1.00 mi4272-393997-353997-354325(Top 16%)3917(Top 26%)3917(Top 174%)
40K24.85 mi0.85 mi4188+843917+803917+803041(Top 11%)2799(Top 18%)2799(Top 124%)
25.2M25.20 mi0.35 mi4177+113908+93908+93401(Top 13%)3084(Top 20%)3084(Top 137%)
Finish26.22 mi1.02 mi4106+713841+673841+672627(Top 10%)2413(Top 16%)2413(Top 107%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21story building
+97ft-345ft

Overall

3672

Males

3463

M45-49

3463

5K→10K

3.1 - 6.2 mi

Top 16%
×5story building
+79ft-138ft

Overall

4150

Males

3894

M45-49

3894

10K→15K

6.2 - 9.3 mi

Top 14%
×3story building
+67ft-78ft

Overall

3672

Males

3463

M45-49

3463

15K→20K

9.3 - 12.4 mi

Top 15%
×5story building
+106ft-86ft

Overall

3876

Males

3656

M45-49

3656

20K→Half

12.4 - 13.1 mi

Top 15%
×2story building
+19ft-37ft

Overall

4046

Males

3798

M45-49

3798

Half→25K

13.1 - 15.5 mi

Top 15%
×4story building
+66ft-88ft

Overall

3951

Males

3712

M45-49

3712

25K→30K

15.5 - 18.6 mi

Top 18%
×9story building
+181ft-148ft

Overall

4792

Males

4417

M45-49

4417

30K→20M

18.6 - 20.0 mi

Top 16%
×5story building
+64ft-50ft

Overall

4189

Males

3868

M45-49

3868

20M→21M

20.0 - 21.0 mi

Top 17%
×8story building
+106ft-24ft

Overall

4476

Males

4078

M45-49

4078

21M→35K

21.0 - 21.8 mi

Top 20%
×7story building
+17ft-86ft

Overall

5266

Males

4694

M45-49

4694

35K→23M

21.8 - 23.0 mi

Top 17%
×5story building
+23ft-63ft

Overall

4536

Males

4108

M45-49

4108

23M→24M

23.0 - 24.0 mi

Top 16%
×6story building
+12ft-82ft

Overall

4325

Males

3917

M45-49

3917

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3041

Males

2799

M45-49

2799

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3401

Males

3084

M45-49

3084

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2story building
+22ft-21ft

Overall

2627

Males

2413

M45-49

2413

Passing Analysis

Category:
Athletes Passed
1578
Passed By
838
Net Change
+740
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4846
5K → 10K45268+384#4846#4462
10K → 15K32825+303#4462#4159
15K → 20K15657+99#4159#4060
20K → Half2519+6#4060#4054
Half → 25K8967+22#4054#4032
25K → 30K77210-133#4032#4165
30K → 20M6569-4#4165#4169
20M → 21M6768-1#4169#4170
21M → 35K2165-44#4170#4214
35K → 23M5978-19#4214#4233
23M → 24M3776-39#4233#4272
24M → 40K9612+84#4272#4188
40K → 25.2M209+11#4188#4177
25.2M → Finish8615+71#4177#4106
TOTALS1578838+740
📊

Passing Visuals

Category:
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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