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BOSTON MARATHON 2023

Andrzej Obrebski

Bib: 15570•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Top 45%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:44
Rank: #13719
Start → 5K
24:44 | 7:58/mi
10K· 6.21 mi
49:14
Rank: #13759 (-40)
5K → 10K
24:30 | 7:53/mi
15K· 9.32 mi
1:13:55
Rank: #13818 (-59)
10K → 15K
24:41 | 7:57/mi
20K· 12.43 mi
1:38:56
Rank: #13790 (+28)
15K → 20K
25:01 | 8:03/mi
Half· 13.11 mi
1:44:18
Rank: #13751 (+39)
20K → Half
5:22 | 7:52/mi
25K· 15.53 mi
2:03:55
Rank: #13689 (+62)
Half → 25K
19:37 | 8:05/mi
30K· 18.64 mi
2:29:39
Rank: #13493 (+196)
25K → 30K
25:44 | 8:17/mi
20M
2:41:03
Rank: #13443 (+50)
30K → 20M
11:24 | 8:23/mi
21M
2:49:37
Rank: #13274 (+169)
20M → 21M
8:34 | 8:34/mi
35K· 21.75 mi
2:56:01
Rank: #13355 (-81)
21M → 35K
6:24 | 8:34/mi
23M
3:06:47
Rank: #13358 (-3)
35K → 23M
10:46 | 8:36/mi
24M
3:15:20
Rank: #13409 (-51)
23M → 24M
8:33 | 8:33/mi
40K· 24.85 mi
3:22:44
Rank: #13424 (-15)
24M → 40K
7:24 | 8:39/mi
25.2M
3:25:56
Rank: #13423 (+1)
40K → 25.2M
3:12 | 9:17/mi
Finish· 26.22 mi
3:34:21
Rank: #13442 (-19)
25.2M → Finish
8:25 | 8:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:18
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time1:50:03
Pace8:24 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:1224:447:5824:44
7:58
-
10K
6.21 mi11:18:4249:147:5524:30
7:53
-0:05
15K
9.32 mi11:43:231:13:557:5624:41
7:57
+0:04
20K
12.43 mi12:08:241:38:567:5825:01
8:03
+0:06
Half
13.11 mi12:13:461:44:187:575:22
7:52
-0:11
25K
15.53 mi12:33:232:03:557:5919:37
8:05
+0:13
30K
18.64 mi12:59:072:29:398:0225:44
8:17
+0:12
20M
20.00 mi13:10:312:41:038:0311:24
8:23
+0:06
21M
21.00 mi13:19:052:49:378:058:34
8:34
+0:11
35K
21.75 mi13:25:292:56:018:066:24
8:34
0:00
23M
23.00 mi13:36:153:06:478:0710:46
8:36
+0:02
24M
24.00 mi13:44:483:15:208:088:33
8:33
-0:03
40K
24.85 mi13:52:123:22:448:097:24
8:39
+0:06
25.2M
25.20 mi13:55:243:25:568:103:12
9:17
+0:38
Finish
26.22 mi14:03:493:34:218:118:25
8:16
-1:01

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

7:52 /mi

Average Pace

8:11 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:31:09

99% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

3:12

1% of race

Average Pace: 8:11 /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 mi10:54:1224:447:5824:44
7:58
#13719
10K
6.21 mi11:18:4249:147:5524:30
7:53
#13759
15K
9.32 mi11:43:231:13:557:5624:41
7:57
#13818
20K
12.43 mi12:08:241:38:567:5825:01
8:03
#13790
Half
13.11 mi12:13:461:44:187:575:22
7:52
#13751
25K
15.53 mi12:33:232:03:557:5919:37
8:05
#13689
30K
18.64 mi12:59:072:29:398:0225:44
8:17
#13493
20M
20.00 mi13:10:312:41:038:0311:24
8:23
#13443
21M
21.00 mi13:19:052:49:378:058:34
8:34
#13274
35K
21.75 mi13:25:292:56:018:066:24
8:34
#13355
23M
23.00 mi13:36:153:06:478:0710:46
8:36
#13358
24M
24.00 mi13:44:483:15:208:088:33
8:33
#13409
40K
24.85 mi13:52:123:22:448:097:24
8:39
#13424
25.2M
25.20 mi13:55:243:25:568:103:12
9:17
#13423
Finish
26.22 mi14:03:493:34:218:118:25
8:16
#13442
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi137199845984513935(Top 52%)9871(Top 65%)9871(Top 694%)
10K6.21 mi3.10 mi13759-409835+109835+1013849(Top 52%)9876(Top 65%)9876(Top 695%)
15K9.32 mi3.11 mi13818-599847-129847-1213935(Top 52%)9871(Top 65%)9871(Top 694%)
20K12.43 mi3.11 mi13790+289814+339814+3313838(Top 52%)9812(Top 65%)9812(Top 690%)
Half13.11 mi0.68 mi13751+399802+129802+1213266(Top 50%)9596(Top 63%)9596(Top 675%)
25K15.53 mi2.42 mi13689+629750+529750+5213433(Top 50%)9538(Top 63%)9538(Top 671%)
30K18.64 mi3.11 mi13493+1969639+1119639+11112911(Top 48%)9196(Top 61%)9196(Top 647%)
20M20.00 mi1.36 mi13443+509601+389601+3812933(Top 49%)9101(Top 60%)9101(Top 640%)
21M21.00 mi1.00 mi13274+1699520+819520+8110811(Top 41%)8010(Top 53%)8010(Top 563%)
35K21.75 mi0.75 mi13355-819534-149534-1415667(Top 59%)10124(Top 67%)10124(Top 712%)
23M23.00 mi1.25 mi13358-39512+229512+2213773(Top 52%)9267(Top 61%)9267(Top 652%)
24M24.00 mi1.00 mi13409-519515-39515-314739(Top 55%)9630(Top 63%)9630(Top 677%)
40K24.85 mi0.85 mi13424-159494+219494+2114243(Top 54%)9342(Top 62%)9342(Top 657%)
25.2M25.20 mi0.35 mi13423+19477+179477+1714021(Top 53%)9239(Top 61%)9239(Top 650%)
Finish26.22 mi1.02 mi13442-199466+119466+1113817(Top 52%)9158(Top 60%)9158(Top 644%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21stories
+97ft-345ft

Overall

13935

Males

9871

M55-59

9871

5K→10K

3.1 - 6.2 mi

Top 52%
×5stories
+79ft-138ft

Overall

13849

Males

9876

M55-59

9876

10K→15K

6.2 - 9.3 mi

Top 52%
×3stories
+67ft-78ft

Overall

13935

Males

9871

M55-59

9871

15K→20K

9.3 - 12.4 mi

Top 52%
×5stories
+106ft-86ft

Overall

13838

Males

9812

M55-59

9812

20K→Half

12.4 - 13.1 mi

Top 50%
×2stories
+19ft-37ft

Overall

13266

Males

9596

M55-59

9596

Half→25K

13.1 - 15.5 mi

Top 50%
×4stories
+66ft-88ft

Overall

13433

Males

9538

M55-59

9538

25K→30K

15.5 - 18.6 mi

Top 48%
×9stories
+181ft-148ft

Overall

12911

Males

9196

M55-59

9196

30K→20M

18.6 - 20.0 mi

Top 49%
×5stories
+64ft-50ft

Overall

12933

Males

9101

M55-59

9101

20M→21M

20.0 - 21.0 mi

Top 41%
×8stories
+106ft-24ft

Overall

10811

Males

8010

M55-59

8010

21M→35K

21.0 - 21.8 mi

Top 59%
×7stories
+17ft-86ft

Overall

15667

Males

10124

M55-59

10124

35K→23M

21.8 - 23.0 mi

Top 52%
×5stories
+23ft-63ft

Overall

13773

Males

9267

M55-59

9267

23M→24M

23.0 - 24.0 mi

Top 55%
×6stories
+12ft-82ft

Overall

14739

Males

9630

M55-59

9630

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14243

Males

9342

M55-59

9342

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14021

Males

9239

M55-59

9239

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2stories
+22ft-21ft

Overall

13817

Males

9158

M55-59

9158

Passing Analysis

Category:
Athletes Passed
1765
Passed By
1488
Net Change
+277
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13719
5K → 10K270310-40#13719#13759
10K → 15K154213-59#13759#13818
15K → 20K188160+28#13818#13790
20K → Half5213+39#13790#13751
Half → 25K165103+62#13751#13689
25K → 30K28993+196#13689#13493
30K → 20M10858+50#13493#13443
20M → 21M19425+169#13443#13274
21M → 35K32113-81#13274#13355
35K → 23M9699-3#13355#13358
23M → 24M55106-51#13358#13409
24M → 40K6075-15#13409#13424
40K → 25.2M3736+1#13424#13423
25.2M → Finish6584-19#13423#13442
TOTALS17651488+277
📊

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