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BOSTON MARATHON 2023

Michael Gillespie

Bib: 25431•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
8:33/mi
26:33
↑ 97↓ 3451.5%
10K· 6.21 mi
8:29/mi
52:55
↑ 79↓ 1380.4%
15K· 9.32 mi
8:39/mi
1:19:48
↑ 67↓ 78
20K· 12.43 mi
8:47/mi
1:47:05
↑ 106↓ 860.1%
Half· 13.11 mi
8:40/mi
1:53:00
↑ 19↓ 370.5%
25K· 15.53 mi
9:02/mi
2:14:54
↑ 66↓ 880.2%
30K· 18.64 mi
9:19/mi
2:43:51
↑ 181↓ 1480.2%
20M
9:07/mi
2:56:15
↑ 64↓ 500.2%
21M
9:25/mi
3:05:40
↑ 106↓ 241.6%
35K· 21.75 mi
9:19/mi
3:12:38
↑ 17↓ 861.7%
23M
9:46/mi
3:24:52
↑ 23↓ 630.6%
24M
9:16/mi
3:34:08
↓ 821.3%
40K· 24.85 mi
10:16/mi
3:42:55
↓ 200.3%
25.2M
9:20/mi
3:46:08
↑ 13↓ 160.2%
Finish· 26.22 mi
8:05/mi
3:54:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:00
Pace8:37 /mi
2nd Half
Distance13.11 mi
Time2:01:22
Pace9:15 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:2026:338:3326:33
8:33
-
10K
6.21 mi12:08:4252:558:3126:22
8:29
-0:04
15K
9.32 mi12:35:351:19:488:3426:53
8:39
+0:10
20K
12.43 mi13:02:521:47:058:3727:17
8:47
+0:08
Half
13.11 mi13:08:471:53:008:375:55
8:40
-0:07
25K
15.53 mi13:30:412:14:548:4121:54
9:02
+0:22
30K
18.64 mi13:59:382:43:518:4728:57
9:19
+0:17
20M
20.00 mi14:12:022:56:158:4912:24
9:07
-0:12
21M
21.00 mi14:21:273:05:408:509:25
9:25
+0:18
35K
21.75 mi14:28:253:12:388:516:58
9:19
-0:06
23M
23.00 mi14:40:393:24:528:5412:14
9:46
+0:27
24M
24.00 mi14:49:553:34:088:559:16
9:16
-0:30
40K
24.85 mi14:58:423:42:558:588:47
10:16
+1:00
25.2M
25.20 mi15:01:553:46:088:583:13
9:20
-0:56
Finish
26.22 mi15:10:093:54:228:578:14
8:05
-1:15

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

8:05 /mi

Average Pace

8:57 /mi

Slowest Pace

10:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:01:14

52% of race

Time at Steady Pace

1:22:42

35% of race

Time at Slower Pace

30:26

13% of race

Average Pace: 8:56 /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 mi11:42:2026:338:3326:33
8:33
#17873
10K
6.21 mi12:08:4252:558:3126:22
8:29
#17992
15K
9.32 mi12:35:351:19:488:3426:53
8:39
#18238
20K
12.43 mi13:02:521:47:058:3727:17
8:47
#18304
Half
13.11 mi13:08:471:53:008:375:55
8:40
#18322
25K
15.53 mi13:30:412:14:548:4121:54
9:02
#18482
30K
18.64 mi13:59:382:43:518:4728:57
9:19
#18514
20M
20.00 mi14:12:022:56:158:4912:24
9:07
#18408
21M
21.00 mi14:21:273:05:408:509:25
9:25
#18232
35K
21.75 mi14:28:253:12:388:516:58
9:19
#18262
23M
23.00 mi14:40:393:24:528:5412:14
9:46
#18345
24M
24.00 mi14:49:553:34:088:559:16
9:16
#18360
40K
24.85 mi14:58:423:42:558:588:47
10:16
#18490
25.2M
25.20 mi15:01:553:46:088:583:13
9:20
#18429
Finish
26.22 mi15:10:093:54:228:578:14
8:05
#18240
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi17873113831138318735(Top 70%)11766(Top 78%)11766(Top 223%)
10K6.21 mi3.10 mi17992-11911441-5811441-5818162(Top 68%)11572(Top 76%)11572(Top 219%)
15K9.32 mi3.11 mi18238-24611559-11811559-11818735(Top 70%)11766(Top 78%)11766(Top 223%)
20K12.43 mi3.11 mi18304-6611589-3011589-3018562(Top 70%)11716(Top 77%)11716(Top 222%)
Half13.11 mi0.68 mi18322-1811600-1111600-1118739(Top 70%)11794(Top 78%)11794(Top 223%)
25K15.53 mi2.42 mi18482-16011642-4211642-4219116(Top 72%)11896(Top 78%)11896(Top 225%)
30K18.64 mi3.11 mi18514-3211619+2311619+2318700(Top 70%)11649(Top 77%)11649(Top 220%)
20M20.00 mi1.36 mi18408+10611572+4711572+4717185(Top 65%)10893(Top 72%)10893(Top 206%)
21M21.00 mi1.00 mi18232+17611473+9911473+9915554(Top 58%)10163(Top 67%)10163(Top 192%)
35K21.75 mi0.75 mi18262-3011483-1011483-1019186(Top 72%)11669(Top 77%)11669(Top 221%)
23M23.00 mi1.25 mi18345-8311510-2711510-2719323(Top 73%)11704(Top 77%)11704(Top 221%)
24M24.00 mi1.00 mi18360-1511508+211508+218319(Top 69%)11232(Top 74%)11232(Top 213%)
40K24.85 mi0.85 mi18490-13011557-4911557-4920655(Top 78%)12212(Top 80%)12212(Top 231%)
25.2M25.20 mi0.35 mi18429+6111520+3711520+3714309(Top 54%)9402(Top 62%)9402(Top 178%)
Finish26.22 mi1.02 mi18240+18911430+9011430+9012647(Top 48%)8607(Top 57%)8607(Top 163%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

18735

Males

11766

M18-39

11766

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

18162

Males

11572

M18-39

11572

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

18735

Males

11766

M18-39

11766

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

18562

Males

11716

M18-39

11716

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

18739

Males

11794

M18-39

11794

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

19116

Males

11896

M18-39

11896

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

18700

Males

11649

M18-39

11649

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

17185

Males

10893

M18-39

10893

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

15554

Males

10163

M18-39

10163

21M→35K

21.0 - 21.8 mi

Top 72%
×7story building
+17ft-86ft

Overall

19186

Males

11669

M18-39

11669

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

19323

Males

11704

M18-39

11704

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

18319

Males

11232

M18-39

11232

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20655

Males

12212

M18-39

12212

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

14309

Males

9402

M18-39

9402

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

12647

Males

8607

M18-39

8607

Passing Analysis

Category:
Athletes Passed
1525
Passed By
1892
Net Change
-367
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17873
5K → 10K258377-119#17873#17992
10K → 15K102348-246#17992#18238
15K → 20K141207-66#18238#18304
20K → Half2139-18#18304#18322
Half → 25K78238-160#18322#18482
25K → 30K168200-32#18482#18514
30K → 20M14337+106#18514#18408
20M → 21M19923+176#18408#18232
21M → 35K3565-30#18232#18262
35K → 23M56139-83#18262#18345
23M → 24M4661-15#18345#18360
24M → 40K24154-130#18360#18490
40K → 25.2M643+61#18490#18429
25.2M → Finish1901+189#18429#18240
TOTALS15251892-367
📊

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