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BOSTON MARATHON 2023

Michael Bird

Bib: 27088•M

MA

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

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:15/mi
28:43
↑ 97↓ 3451.5%
10K· 6.21 mi
9:51/mi
59:20
↑ 79↓ 1380.4%
15K· 9.32 mi
9:28/mi
1:28:46
↑ 67↓ 78
20K· 12.43 mi
10:19/mi
2:00:49
↑ 106↓ 860.1%
Half· 13.11 mi
10:21/mi
2:07:53
↑ 19↓ 370.5%
25K· 15.53 mi
10:41/mi
2:33:47
↑ 66↓ 880.2%
30K· 18.64 mi
12:46/mi
3:13:28
↑ 181↓ 1480.2%
20M
12:39/mi
3:30:40
↑ 64↓ 500.2%
21M
13:02/mi
3:43:42
↑ 106↓ 241.6%
35K· 21.75 mi
10:31/mi
3:51:34
↑ 17↓ 861.7%
23M
10:48/mi
4:05:05
↑ 23↓ 630.6%
24M
10:35/mi
4:15:40
↓ 821.3%
40K· 24.85 mi
11:05/mi
4:25:09
↓ 200.3%
25.2M
11:45/mi
4:29:12
↑ 13↓ 160.2%
Finish· 26.22 mi
10:38/mi
4:40:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:53
Pace9:45 /mi
2nd Half
Distance13.11 mi
Time2:32:09
Pace11:36 /mi
📊Positive Split: 19.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:4128:439:1528:43
9:15
-
10K
6.21 mi12:16:1859:209:3330:37
9:51
+0:36
15K
9.32 mi12:45:441:28:469:3129:26
9:28
-0:23
20K
12.43 mi13:17:472:00:499:4332:03
10:19
+0:51
Half
13.11 mi13:24:512:07:539:457:04
10:21
+0:02
25K
15.53 mi13:50:452:33:479:5425:54
10:41
+0:20
30K
18.64 mi14:30:263:13:2810:2339:41
12:46
+2:05
20M
20.00 mi14:47:383:30:4010:3217:12
12:39
-0:07
21M
21.00 mi15:00:403:43:4210:3913:02
13:02
+0:23
35K
21.75 mi15:08:323:51:3410:397:52
10:31
-2:31
23M
23.00 mi15:22:034:05:0510:3913:31
10:48
+0:17
24M
24.00 mi15:32:384:15:4010:3910:35
10:35
-0:13
40K
24.85 mi15:42:074:25:0910:409:29
11:05
+0:30
25.2M
25.20 mi15:46:104:29:1210:414:03
11:45
+0:40
Finish
26.22 mi15:57:004:40:0210:4110:50
10:38
-1:07

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

9:15 /mi

Average Pace

10:41 /mi

Slowest Pace

13:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:46

32% of race

Time at Steady Pace

1:57:18

42% of race

Time at Slower Pace

1:13:58

26% of race

Average Pace: 10:41 /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 mi11:45:4128:439:1528:43
9:15
#21349
10K
6.21 mi12:16:1859:209:3330:37
9:51
#22462
15K
9.32 mi12:45:441:28:469:3129:26
9:28
#22388
20K
12.43 mi13:17:472:00:499:4332:03
10:19
#22730
Half
13.11 mi13:24:512:07:539:457:04
10:21
#22807
25K
15.53 mi13:50:452:33:479:5425:54
10:41
#22954
30K
18.64 mi14:30:263:13:2810:2339:41
12:46
#23576
20M
20.00 mi14:47:383:30:4010:3217:12
12:39
#23722
21M
21.00 mi15:00:403:43:4210:3913:02
13:02
#23762
35K
21.75 mi15:08:323:51:3410:397:52
10:31
#23721
23M
23.00 mi15:22:034:05:0510:3913:31
10:48
#23639
24M
24.00 mi15:32:384:15:4010:3910:35
10:35
#23579
40K
24.85 mi15:42:074:25:0910:409:29
11:05
#23560
25.2M
25.20 mi15:46:104:29:1210:414:03
11:45
#23538
Finish
26.22 mi15:57:004:40:0210:4110:50
10:38
#23537
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21349127781277822173(Top 83%)13263(Top 87%)13263(Top 251%)
10K6.21 mi3.10 mi22462-111313358-58013358-58023387(Top 88%)13806(Top 91%)13806(Top 261%)
15K9.32 mi3.11 mi22388+7413330+2813330+2822173(Top 83%)13263(Top 87%)13263(Top 251%)
20K12.43 mi3.11 mi22730-34213507-17713507-17723500(Top 88%)13847(Top 91%)13847(Top 262%)
Half13.11 mi0.68 mi22807-7713542-3513542-3523917(Top 90%)14025(Top 92%)14025(Top 265%)
25K15.53 mi2.42 mi22954-14713594-5213594-5223484(Top 88%)13805(Top 91%)13805(Top 261%)
30K18.64 mi3.11 mi23576-62213870-27613870-27625227(Top 95%)14510(Top 96%)14510(Top 275%)
20M20.00 mi1.36 mi23722-14613922-5213922-5224881(Top 93%)14320(Top 94%)14320(Top 271%)
21M21.00 mi1.00 mi23762-4013931-913931-924114(Top 91%)13940(Top 92%)13940(Top 264%)
35K21.75 mi0.75 mi23721+4113911+2013911+2022420(Top 84%)13121(Top 86%)13121(Top 248%)
23M23.00 mi1.25 mi23639+8213868+4313868+4321955(Top 82%)12889(Top 85%)12889(Top 244%)
24M24.00 mi1.00 mi23579+6013833+3513833+3522199(Top 83%)12970(Top 85%)12970(Top 245%)
40K24.85 mi0.85 mi23560+1913817+1613817+1622535(Top 85%)13103(Top 86%)13103(Top 248%)
25.2M25.20 mi0.35 mi23538+2213797+2013797+2022039(Top 83%)12872(Top 85%)12872(Top 244%)
Finish26.22 mi1.02 mi23537+113787+1013787+1023281(Top 87%)13469(Top 89%)13469(Top 255%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21story building
+97ft-345ft

Overall

22173

Males

13263

M18-39

13263

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

23387

Males

13806

M18-39

13806

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+67ft-78ft

Overall

22173

Males

13263

M18-39

13263

15K→20K

9.3 - 12.4 mi

Top 88%
×5story building
+106ft-86ft

Overall

23500

Males

13847

M18-39

13847

20K→Half

12.4 - 13.1 mi

Top 90%
×2story building
+19ft-37ft

Overall

23917

Males

14025

M18-39

14025

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

23484

Males

13805

M18-39

13805

25K→30K

15.5 - 18.6 mi

Top 95%
×9story building
+181ft-148ft

Overall

25227

Males

14510

M18-39

14510

30K→20M

18.6 - 20.0 mi

Top 93%
×5story building
+64ft-50ft

Overall

24881

Males

14320

M18-39

14320

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

24114

Males

13940

M18-39

13940

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

22420

Males

13121

M18-39

13121

35K→23M

21.8 - 23.0 mi

Top 82%
×5story building
+23ft-63ft

Overall

21955

Males

12889

M18-39

12889

23M→24M

23.0 - 24.0 mi

Top 83%
×6story building
+12ft-82ft

Overall

22199

Males

12970

M18-39

12970

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

22535

Males

13103

M18-39

13103

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

22039

Males

12872

M18-39

12872

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2story building
+22ft-21ft

Overall

23281

Males

13469

M18-39

13469

Passing Analysis

Category:
Athletes Passed
678
Passed By
2866
Net Change
-2188
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21349
5K → 10K201133-1113#21349#22462
10K → 15K187113+74#22462#22388
15K → 20K51393-342#22388#22730
20K → Half885-77#22730#22807
Half → 25K49196-147#22807#22954
25K → 30K11633-622#22954#23576
30K → 20M23169-146#23576#23722
20M → 21M2969-40#23722#23762
21M → 35K498+41#23762#23721
35K → 23M9210+82#23721#23639
23M → 24M655+60#23639#23579
24M → 40K3415+19#23579#23560
40K → 25.2M275+22#23560#23538
25.2M → Finish3332+1#23538#23537
TOTALS6782866-2188
📊

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