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BOSTON MARATHON 2023

Mel O'Sullivan

Bib: 5728•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 25%
Gender (Male)
#0 / 15176
Top 39%
Masters (Masters Men)
#0 / 9891
Top 25%
Division (M50-54)
#0 / 2052
Top 20%
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
6:33/mi
20:21
↑ 97↓ 3451.5%
10K· 6.21 mi
6:30/mi
40:32
↑ 79↓ 1380.4%
15K· 9.32 mi
6:29/mi
1:00:40
↑ 67↓ 78
20K· 12.43 mi
6:40/mi
1:21:22
↑ 106↓ 860.1%
Half· 13.11 mi
6:39/mi
1:25:54
↑ 19↓ 370.5%
25K· 15.53 mi
6:58/mi
1:42:48
↑ 66↓ 880.2%
30K· 18.64 mi
7:43/mi
2:06:45
↑ 181↓ 1480.2%
20M
8:54/mi
2:18:50
↑ 64↓ 500.2%
21M
9:33/mi
2:28:23
↑ 106↓ 241.6%
35K· 21.75 mi
8:17/mi
2:34:35
↑ 17↓ 861.7%
23M
8:28/mi
2:45:11
↑ 23↓ 630.6%
24M
8:05/mi
2:53:16
↓ 821.3%
40K· 24.85 mi
8:12/mi
3:00:17
↓ 200.3%
25.2M
9:11/mi
3:03:27
↑ 13↓ 160.2%
Finish· 26.22 mi
7:53/mi
3:11:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:54
Pace6:33 /mi
2nd Half
Distance13.11 mi
Time1:45:35
Pace8:03 /mi
📊Positive Split: 22.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:5120:216:3320:21
6:33
-
10K
6.21 mi10:43:0240:326:3120:11
6:30
-0:03
15K
9.32 mi11:03:101:00:406:3120:08
6:29
-0:01
20K
12.43 mi11:23:521:21:226:3320:42
6:40
+0:11
Half
13.11 mi11:28:241:25:546:334:32
6:39
-0:01
25K
15.53 mi11:45:181:42:486:3716:54
6:58
+0:19
30K
18.64 mi12:09:152:06:456:4823:57
7:43
+0:45
20M
20.00 mi12:21:202:18:506:5612:05
8:54
+1:11
21M
21.00 mi12:30:532:28:237:049:33
9:33
+0:39
35K
21.75 mi12:37:052:34:357:066:12
8:17
-1:16
23M
23.00 mi12:47:412:45:117:1110:36
8:28
+0:11
24M
24.00 mi12:55:462:53:167:138:05
8:05
-0:23
40K
24.85 mi13:02:473:00:177:157:01
8:12
+0:07
25.2M
25.20 mi13:05:573:03:277:173:10
9:11
+0:59
Finish
26.22 mi13:13:593:11:297:198:02
7:53
-1:18

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

6:29 /mi

Average Pace

7:19 /mi

Slowest Pace

9:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:48

54% of race

Time at Steady Pace

53:17

28% of race

Time at Slower Pace

35:24

18% of race

Average Pace: 7:18 /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 mi10:22:5120:216:3320:21
6:33
#2558
10K
6.21 mi10:43:0240:326:3120:11
6:30
#2652
15K
9.32 mi11:03:101:00:406:3120:08
6:29
#2586
20K
12.43 mi11:23:521:21:226:3320:42
6:40
#2721
Half
13.11 mi11:28:241:25:546:334:32
6:39
#2766
25K
15.53 mi11:45:181:42:486:3716:54
6:58
#3119
30K
18.64 mi12:09:152:06:456:4823:57
7:43
#4317
20M
20.00 mi12:21:202:18:506:5612:05
8:54
#5304
21M
21.00 mi12:30:532:28:237:049:33
9:33
#5799
35K
21.75 mi12:37:052:34:357:066:12
8:17
#6007
23M
23.00 mi12:47:412:45:117:1110:36
8:28
#6295
24M
24.00 mi12:55:462:53:167:138:05
8:05
#6454
40K
24.85 mi13:02:473:00:177:157:01
8:12
#6540
25.2M
25.20 mi13:05:573:03:277:173:10
9:11
#6647
Finish
26.22 mi13:13:593:11:297:198:02
7:53
#6766
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi2558244124412540(Top 10%)2436(Top 16%)2436(Top 119%)
10K6.21 mi3.10 mi2652-942532-912532-912777(Top 10%)2655(Top 17%)2655(Top 129%)
15K9.32 mi3.11 mi2586+662471+612471+612540(Top 10%)2436(Top 16%)2436(Top 119%)
20K12.43 mi3.11 mi2721-1352600-1292600-1293297(Top 12%)3131(Top 21%)3131(Top 153%)
Half13.11 mi0.68 mi2766-452645-452645-453891(Top 15%)3675(Top 24%)3675(Top 179%)
25K15.53 mi2.42 mi3119-3532973-3282973-3285420(Top 20%)4995(Top 33%)4995(Top 243%)
30K18.64 mi3.11 mi4317-11984045-10724045-10728685(Top 33%)7082(Top 47%)7082(Top 345%)
20M20.00 mi1.36 mi5304-9874897-8524897-85215940(Top 60%)10376(Top 68%)10376(Top 506%)
21M21.00 mi1.00 mi5799-4955290-3935290-39316167(Top 61%)10416(Top 69%)10416(Top 508%)
35K21.75 mi0.75 mi6007-2085438-1485438-14813975(Top 52%)9394(Top 62%)9394(Top 458%)
23M23.00 mi1.25 mi6295-2885647-2095647-20912962(Top 49%)8889(Top 59%)8889(Top 433%)
24M24.00 mi1.00 mi6454-1595749-1025749-10211771(Top 44%)8271(Top 55%)8271(Top 403%)
40K24.85 mi0.85 mi6540-865796-475796-4711356(Top 43%)7990(Top 53%)7990(Top 389%)
25.2M25.20 mi0.35 mi6647-1075861-655861-6513433(Top 50%)8926(Top 59%)8926(Top 435%)
Finish26.22 mi1.02 mi6766-1195933-725933-7211240(Top 42%)7897(Top 52%)7897(Top 385%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21story building
+97ft-345ft

Overall

2540

Males

2436

M50-54

2436

5K→10K

3.1 - 6.2 mi

Top 10%
×5story building
+79ft-138ft

Overall

2777

Males

2655

M50-54

2655

10K→15K

6.2 - 9.3 mi

Top 10%
×3story building
+67ft-78ft

Overall

2540

Males

2436

M50-54

2436

15K→20K

9.3 - 12.4 mi

Top 12%
×5story building
+106ft-86ft

Overall

3297

Males

3131

M50-54

3131

20K→Half

12.4 - 13.1 mi

Top 15%
×2story building
+19ft-37ft

Overall

3891

Males

3675

M50-54

3675

Half→25K

13.1 - 15.5 mi

Top 20%
×4story building
+66ft-88ft

Overall

5420

Males

4995

M50-54

4995

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

8685

Males

7082

M50-54

7082

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

15940

Males

10376

M50-54

10376

20M→21M

20.0 - 21.0 mi

Top 61%
×8story building
+106ft-24ft

Overall

16167

Males

10416

M50-54

10416

21M→35K

21.0 - 21.8 mi

Top 52%
×7story building
+17ft-86ft

Overall

13975

Males

9394

M50-54

9394

35K→23M

21.8 - 23.0 mi

Top 49%
×5story building
+23ft-63ft

Overall

12962

Males

8889

M50-54

8889

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

11771

Males

8271

M50-54

8271

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

11356

Males

7990

M50-54

7990

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13433

Males

8926

M50-54

8926

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2story building
+22ft-21ft

Overall

11240

Males

7897

M50-54

7897

Passing Analysis

Category:
Athletes Passed
382
Passed By
4590
Net Change
-4208
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2558
5K → 10K102196-94#2558#2652
10K → 15K11852+66#2652#2586
15K → 20K33168-135#2586#2721
20K → Half449-45#2721#2766
Half → 25K10363-353#2766#3119
25K → 30K41202-1198#3119#4317
30K → 20M2989-987#4317#5304
20M → 21M5500-495#5304#5799
21M → 35K7215-208#5799#6007
35K → 23M13301-288#6007#6295
23M → 24M25184-159#6295#6454
24M → 40K30116-86#6454#6540
40K → 25.2M4111-107#6540#6647
25.2M → Finish25144-119#6647#6766
TOTALS3824590-4208
📊

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