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BOSTON MARATHON 2023

Alan O'Shea

Bib: 5549•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 9%
Gender (Male)
#0 / 15176
Top 15%
Division (M18-39)
#0 / 5285
Top 34%
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
6:41/mi
20:45
↑ 97↓ 3451.5%
10K· 6.21 mi
6:35/mi
41:13
↑ 79↓ 1380.4%
15K· 9.32 mi
6:39/mi
1:01:54
↑ 67↓ 78
20K· 12.43 mi
6:39/mi
1:22:34
↑ 106↓ 860.1%
Half· 13.11 mi
6:31/mi
1:27:01
↑ 19↓ 370.5%
25K· 15.53 mi
6:36/mi
1:43:00
↑ 66↓ 880.2%
30K· 18.64 mi
6:47/mi
2:04:05
↑ 181↓ 1480.2%
20M
6:37/mi
2:13:05
↑ 64↓ 500.2%
21M
6:53/mi
2:19:58
↑ 106↓ 241.6%
35K· 21.75 mi
6:28/mi
2:24:48
↑ 17↓ 861.7%
23M
6:37/mi
2:33:05
↑ 23↓ 630.6%
24M
6:25/mi
2:39:30
↓ 821.3%
40K· 24.85 mi
6:31/mi
2:45:04
↓ 200.3%
25.2M
6:58/mi
2:47:28
↑ 13↓ 160.2%
Finish· 26.22 mi
6:07/mi
2:53:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:27:01
Pace6:38 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:26:41
Pace6:37 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:5520:456:4120:45
6:41
-
10K
6.21 mi10:44:2341:136:3820:28
6:35
-0:06
15K
9.32 mi11:05:041:01:546:3820:41
6:39
+0:04
20K
12.43 mi11:25:441:22:346:3920:40
6:39
0:00
Half
13.11 mi11:30:111:27:016:384:27
6:31
-0:08
25K
15.53 mi11:46:101:43:006:3815:59
6:36
+0:05
30K
18.64 mi12:07:152:04:056:3921:05
6:47
+0:11
20M
20.00 mi12:16:152:13:056:399:00
6:37
-0:10
21M
21.00 mi12:23:082:19:586:406:53
6:53
+0:16
35K
21.75 mi12:27:582:24:486:394:50
6:28
-0:25
23M
23.00 mi12:36:152:33:056:398:17
6:37
+0:09
24M
24.00 mi12:42:402:39:306:396:25
6:25
-0:12
40K
24.85 mi12:48:142:45:046:385:34
6:31
+0:06
25.2M
25.20 mi12:50:382:47:286:392:24
6:58
+0:27
Finish
26.22 mi12:56:522:53:426:386:14
6:07
-0:51

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

6:07 /mi

Average Pace

6:38 /mi

Slowest Pace

6:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:23:20

83% of race

Time at Steady Pace

30:22

17% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:37 /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 mi10:23:5520:456:4120:45
6:41
#3455
10K
6.21 mi10:44:2341:136:3820:28
6:35
#3399
15K
9.32 mi11:05:041:01:546:3820:41
6:39
#3482
20K
12.43 mi11:25:441:22:346:3920:40
6:39
#3403
Half
13.11 mi11:30:111:27:016:384:27
6:31
#3369
25K
15.53 mi11:46:101:43:006:3815:59
6:36
#3208
30K
18.64 mi12:07:152:04:056:3921:05
6:47
#3079
20M
20.00 mi12:16:152:13:056:399:00
6:37
#2964
21M
21.00 mi12:23:082:19:586:406:53
6:53
#2846
35K
21.75 mi12:27:582:24:486:394:50
6:28
#2795
23M
23.00 mi12:36:152:33:056:398:17
6:37
#2686
24M
24.00 mi12:42:402:39:306:396:25
6:25
#2606
40K
24.85 mi12:48:142:45:046:385:34
6:31
#2542
25.2M
25.20 mi12:50:382:47:286:392:24
6:58
#2504
Finish
26.22 mi12:56:522:53:426:386:14
6:07
#2407
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3455325632563719(Top 14%)3503(Top 23%)3503(Top 66%)
10K6.21 mi3.10 mi3399+563214+423214+423389(Top 13%)3218(Top 21%)3218(Top 61%)
15K9.32 mi3.11 mi3482-833296-823296-823719(Top 14%)3503(Top 23%)3503(Top 66%)
20K12.43 mi3.11 mi3403+793228+683228+683181(Top 12%)3022(Top 20%)3022(Top 57%)
Half13.11 mi0.68 mi3369+343200+283200+282889(Top 11%)2764(Top 18%)2764(Top 52%)
25K15.53 mi2.42 mi3208+1613056+1443056+1442657(Top 10%)2543(Top 17%)2543(Top 48%)
30K18.64 mi3.11 mi3079+1292933+1232933+1232872(Top 11%)2722(Top 18%)2722(Top 52%)
20M20.00 mi1.36 mi2964+1152829+1042829+1041966(Top 7%)1876(Top 12%)1876(Top 35%)
21M21.00 mi1.00 mi2846+1182720+1092720+1091722(Top 6%)1638(Top 11%)1638(Top 31%)
35K21.75 mi0.75 mi2795+512670+502670+502234(Top 8%)2121(Top 14%)2121(Top 40%)
23M23.00 mi1.25 mi2686+1092567+1032567+1031837(Top 7%)1741(Top 11%)1741(Top 33%)
24M24.00 mi1.00 mi2606+802491+762491+761748(Top 7%)1649(Top 11%)1649(Top 31%)
40K24.85 mi0.85 mi2542+642427+642427+641580(Top 6%)1490(Top 10%)1490(Top 28%)
25.2M25.20 mi0.35 mi2504+382390+372390+371635(Top 6%)1541(Top 10%)1541(Top 29%)
Finish26.22 mi1.02 mi2407+972298+922298+921047(Top 4%)996(Top 7%)996(Top 19%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21story building
+97ft-345ft

Overall

3719

Males

3503

M18-39

3503

5K→10K

3.1 - 6.2 mi

Top 13%
×5story building
+79ft-138ft

Overall

3389

Males

3218

M18-39

3218

10K→15K

6.2 - 9.3 mi

Top 14%
×3story building
+67ft-78ft

Overall

3719

Males

3503

M18-39

3503

15K→20K

9.3 - 12.4 mi

Top 12%
×5story building
+106ft-86ft

Overall

3181

Males

3022

M18-39

3022

20K→Half

12.4 - 13.1 mi

Top 11%
×2story building
+19ft-37ft

Overall

2889

Males

2764

M18-39

2764

Half→25K

13.1 - 15.5 mi

Top 10%
×4story building
+66ft-88ft

Overall

2657

Males

2543

M18-39

2543

25K→30K

15.5 - 18.6 mi

Top 11%
×9story building
+181ft-148ft

Overall

2872

Males

2722

M18-39

2722

30K→20M

18.6 - 20.0 mi

Top 7%
×5story building
+64ft-50ft

Overall

1966

Males

1876

M18-39

1876

20M→21M

20.0 - 21.0 mi

Top 6%
×8story building
+106ft-24ft

Overall

1722

Males

1638

M18-39

1638

21M→35K

21.0 - 21.8 mi

Top 8%
×7story building
+17ft-86ft

Overall

2234

Males

2121

M18-39

2121

35K→23M

21.8 - 23.0 mi

Top 7%
×5story building
+23ft-63ft

Overall

1837

Males

1741

M18-39

1741

23M→24M

23.0 - 24.0 mi

Top 7%
×6story building
+12ft-82ft

Overall

1748

Males

1649

M18-39

1649

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1580

Males

1490

M18-39

1490

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1635

Males

1541

M18-39

1541

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2story building
+22ft-21ft

Overall

1047

Males

996

M18-39

996

Passing Analysis

Category:
Athletes Passed
1503
Passed By
455
Net Change
+1048
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3455
5K → 10K218162+56#3455#3399
10K → 15K68151-83#3399#3482
15K → 20K12445+79#3482#3403
20K → Half373+34#3403#3369
Half → 25K1676+161#3369#3208
25K → 30K16435+129#3208#3079
30K → 20M1205+115#3079#2964
20M → 21M1191+118#2964#2846
21M → 35K609+51#2846#2795
35K → 23M1189+109#2795#2686
23M → 24M9111+80#2686#2606
24M → 40K706+64#2606#2542
40K → 25.2M413+38#2542#2504
25.2M → Finish1069+97#2504#2407
TOTALS1503455+1048
📊

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