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BOSTON MARATHON 2023

Michael Olzinski

Bib: 1795•M

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 11%
Gender (Male)
#0 / 15176
Top 18%
Division (M18-39)
#0 / 5285
Top 38%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:40
Rank: #3240
Start → 5K
20:40 | 6:39/mi
10K· 6.21 mi
40:44
Rank: #2838 (+402)
5K → 10K
20:04 | 6:28/mi
15K· 9.32 mi
1:01:10
Rank: #2916 (-78)
10K → 15K
20:26 | 6:35/mi
20K· 12.43 mi
1:22:02
Rank: #3087 (-171)
15K → 20K
20:52 | 6:43/mi
Half· 13.11 mi
1:26:33
Rank: #3100 (-13)
20K → Half
4:31 | 6:37/mi
25K· 15.53 mi
1:42:37
Rank: #3040 (+60)
Half → 25K
16:04 | 6:38/mi
30K· 18.64 mi
2:04:05
Rank: #3081 (-41)
25K → 30K
21:28 | 6:55/mi
20M
2:13:22
Rank: #3054 (+27)
30K → 20M
9:17 | 6:50/mi
21M
2:20:30
Rank: #3016 (+38)
20M → 21M
7:08 | 7:08/mi
35K· 21.75 mi
2:25:24
Rank: #2988 (+28)
21M → 35K
4:54 | 6:33/mi
23M
2:33:52
Rank: #2920 (+68)
35K → 23M
8:28 | 6:46/mi
24M
2:40:30
Rank: #2893 (+27)
23M → 24M
6:38 | 6:38/mi
40K· 24.85 mi
2:46:11
Rank: #2821 (+72)
24M → 40K
5:41 | 6:39/mi
25.2M
2:48:40
Rank: #2801 (+20)
40K → 25.2M
2:29 | 7:12/mi
Finish· 26.22 mi
2:55:31
Rank: #2824 (-23)
25.2M → Finish
6:51 | 6:43/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:33
Pace6:36 /mi
2nd Half
Distance13.11 mi
Time1:28:58
Pace6:47 /mi
📊Positive Split: 2.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1120:406:3920:40
6:39
-
10K
6.21 mi10:41:1540:446:3320:04
6:28
-0:11
15K
9.32 mi11:01:411:01:106:3420:26
6:35
+0:07
20K
12.43 mi11:22:331:22:026:3620:52
6:43
+0:08
Half
13.11 mi11:27:041:26:336:364:31
6:37
-0:06
25K
15.53 mi11:43:081:42:376:3616:04
6:38
+0:01
30K
18.64 mi12:04:362:04:056:3921:28
6:55
+0:17
20M
20.00 mi12:13:532:13:226:409:17
6:50
-0:05
21M
21.00 mi12:21:012:20:306:417:08
7:08
+0:18
35K
21.75 mi12:25:552:25:246:414:54
6:33
-0:35
23M
23.00 mi12:34:232:33:526:418:28
6:46
+0:13
24M
24.00 mi12:41:012:40:306:416:38
6:38
-0:08
40K
24.85 mi12:46:422:46:116:415:41
6:39
+0:01
25.2M
25.20 mi12:49:112:48:406:422:29
7:12
+0:33
Finish
26.22 mi12:56:022:55:316:426:51
6:43
-0:29

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

6:28 /mi

Average Pace

6:42 /mi

Slowest Pace

7:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45:54

95% of race

Time at Steady Pace

9:37

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:42 /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 mi10:21:1120:406:3920:40
6:39
#3240
10K
6.21 mi10:41:1540:446:3320:04
6:28
#2838
15K
9.32 mi11:01:411:01:106:3420:26
6:35
#2916
20K
12.43 mi11:22:331:22:026:3620:52
6:43
#3087
Half
13.11 mi11:27:041:26:336:364:31
6:37
#3100
25K
15.53 mi11:43:081:42:376:3616:04
6:38
#3040
30K
18.64 mi12:04:362:04:056:3921:28
6:55
#3081
20M
20.00 mi12:13:532:13:226:409:17
6:50
#3054
21M
21.00 mi12:21:012:20:306:417:08
7:08
#3016
35K
21.75 mi12:25:552:25:246:414:54
6:33
#2988
23M
23.00 mi12:34:232:33:526:418:28
6:46
#2920
24M
24.00 mi12:41:012:40:306:416:38
6:38
#2893
40K
24.85 mi12:46:422:46:116:415:41
6:39
#2821
25.2M
25.20 mi12:49:112:48:406:422:29
7:12
#2801
Finish
26.22 mi12:56:022:55:316:426:51
6:43
#2824
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3240305930593104(Top 12%)2958(Top 19%)2958(Top 56%)
10K6.21 mi3.10 mi2838+4022704+3552704+3552555(Top 10%)2442(Top 16%)2442(Top 46%)
15K9.32 mi3.11 mi2916-782780-762780-763104(Top 12%)2958(Top 19%)2958(Top 56%)
20K12.43 mi3.11 mi3087-1712943-1632943-1633685(Top 14%)3484(Top 23%)3484(Top 66%)
Half13.11 mi0.68 mi3100-132954-112954-113527(Top 13%)3335(Top 22%)3335(Top 63%)
25K15.53 mi2.42 mi3040+602901+532901+532862(Top 11%)2733(Top 18%)2733(Top 52%)
30K18.64 mi3.11 mi3081-412935-342935-343704(Top 14%)3476(Top 23%)3476(Top 66%)
20M20.00 mi1.36 mi3054+272909+262909+263002(Top 11%)2822(Top 19%)2822(Top 53%)
21M21.00 mi1.00 mi3016+382871+382871+382756(Top 10%)2590(Top 17%)2590(Top 49%)
35K21.75 mi0.75 mi2988+282845+262845+262694(Top 10%)2537(Top 17%)2537(Top 48%)
23M23.00 mi1.25 mi2920+682778+672778+672445(Top 9%)2297(Top 15%)2297(Top 43%)
24M24.00 mi1.00 mi2893+272749+292749+292741(Top 10%)2550(Top 17%)2550(Top 48%)
40K24.85 mi0.85 mi2821+722682+672682+672101(Top 8%)1965(Top 13%)1965(Top 37%)
25.2M25.20 mi0.35 mi2801+202661+212661+212511(Top 9%)2324(Top 15%)2324(Top 44%)
Finish26.22 mi1.02 mi2824-232680-192680-193610(Top 14%)3224(Top 21%)3224(Top 61%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3104

Males

2958

M18-39

2958

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2555

Males

2442

M18-39

2442

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3104

Males

2958

M18-39

2958

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3685

Males

3484

M18-39

3484

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3527

Males

3335

M18-39

3335

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

2862

Males

2733

M18-39

2733

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3704

Males

3476

M18-39

3476

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

3002

Males

2822

M18-39

2822

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2756

Males

2590

M18-39

2590

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2694

Males

2537

M18-39

2537

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2445

Males

2297

M18-39

2297

23M→24M

23.0 - 24.0 mi

Top 10%
×6stories
+12ft-82ft

Overall

2741

Males

2550

M18-39

2550

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2101

Males

1965

M18-39

1965

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2511

Males

2324

M18-39

2324

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3610

Males

3224

M18-39

3224

Passing Analysis

Category:
Athletes Passed
1146
Passed By
730
Net Change
+416
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3240
5K → 10K43129+402#3240#2838
10K → 15K74152-78#2838#2916
15K → 20K29200-171#2916#3087
20K → Half922-13#3087#3100
Half → 25K8727+60#3100#3040
25K → 30K79120-41#3040#3081
30K → 20M5629+27#3081#3054
20M → 21M6830+38#3054#3016
21M → 35K4315+28#3016#2988
35K → 23M8315+68#2988#2920
23M → 24M5528+27#2920#2893
24M → 40K764+72#2893#2821
40K → 25.2M266+20#2821#2801
25.2M → Finish3053-23#2801#2824
TOTALS1146730+416
📊

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