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BOSTON MARATHON 2023

David Keeffe

Bib: 26530•M

RI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
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
8:46/mi
27:14
↑ 97↓ 3451.5%
10K· 6.21 mi
8:30/mi
53:40
↑ 79↓ 1380.4%
15K· 9.32 mi
8:33/mi
1:20:15
↑ 67↓ 78
20K· 12.43 mi
8:37/mi
1:47:00
↑ 106↓ 860.1%
Half· 13.11 mi
8:37/mi
1:52:53
↑ 19↓ 370.5%
25K· 15.53 mi
8:52/mi
2:14:24
↑ 66↓ 880.2%
30K· 18.64 mi
9:16/mi
2:43:10
↑ 181↓ 1480.2%
20M
9:13/mi
2:55:42
↑ 64↓ 500.2%
21M
10:00/mi
3:05:42
↑ 106↓ 241.6%
35K· 21.75 mi
9:07/mi
3:12:31
↑ 17↓ 861.7%
23M
9:33/mi
3:24:28
↑ 23↓ 630.6%
24M
9:23/mi
3:33:51
↓ 821.3%
40K· 24.85 mi
9:31/mi
3:41:59
↓ 200.3%
25.2M
10:21/mi
3:45:33
↑ 13↓ 160.2%
Finish· 26.22 mi
9:35/mi
3:55:19
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:53
Pace8:37 /mi
2nd Half
Distance13.11 mi
Time2:02:26
Pace9:20 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:1827:148:4627:14
8:46
-
10K
6.21 mi12:15:4453:408:3826:26
8:30
-0:16
15K
9.32 mi12:42:191:20:158:3726:35
8:33
+0:03
20K
12.43 mi13:09:041:47:008:3726:45
8:37
+0:04
Half
13.11 mi13:14:571:52:538:375:53
8:37
0:00
25K
15.53 mi13:36:282:14:248:3921:31
8:52
+0:15
30K
18.64 mi14:05:142:43:108:4528:46
9:16
+0:24
20M
20.00 mi14:17:462:55:428:4712:32
9:13
-0:03
21M
21.00 mi14:27:463:05:428:5110:00
10:00
+0:47
35K
21.75 mi14:34:353:12:318:516:49
9:07
-0:53
23M
23.00 mi14:46:323:24:288:5311:57
9:33
+0:26
24M
24.00 mi14:55:553:33:518:559:23
9:23
-0:10
40K
24.85 mi15:04:033:41:598:568:08
9:31
+0:08
25.2M
25.20 mi15:07:373:45:338:573:34
10:21
+0:50
Finish
26.22 mi15:17:233:55:198:599:46
9:35
-0:46

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

8:30 /mi

Average Pace

8:59 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:24

57% of race

Time at Steady Pace

57:30

24% of race

Time at Slower Pace

43:25

18% of race

Average Pace: 8:58 /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 mi11:49:1827:148:4627:14
8:46
#19257
10K
6.21 mi12:15:4453:408:3826:26
8:30
#18723
15K
9.32 mi12:42:191:20:158:3726:35
8:33
#18533
20K
12.43 mi13:09:041:47:008:3726:45
8:37
#18263
Half
13.11 mi13:14:571:52:538:375:53
8:37
#18275
25K
15.53 mi13:36:282:14:248:3921:31
8:52
#18281
30K
18.64 mi14:05:142:43:108:4528:46
9:16
#18291
20M
20.00 mi14:17:462:55:428:4712:32
9:13
#18244
21M
21.00 mi14:27:463:05:428:5110:00
10:00
#18243
35K
21.75 mi14:34:353:12:318:516:49
9:07
#18238
23M
23.00 mi14:46:323:24:288:5311:57
9:33
#18258
24M
24.00 mi14:55:553:33:518:559:23
9:23
#18291
40K
24.85 mi15:04:033:41:598:568:08
9:31
#18312
25.2M
25.20 mi15:07:373:45:338:573:34
10:21
#18315
Finish
26.22 mi15:17:233:55:198:599:46
9:35
#18432
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi19257118721187218179(Top 68%)11552(Top 76%)11552(Top 515%)
10K6.21 mi3.10 mi18723+53411742+13011742+13018297(Top 69%)11620(Top 77%)11620(Top 519%)
15K9.32 mi3.11 mi18533+19011676+6611676+6618179(Top 68%)11552(Top 76%)11552(Top 515%)
20K12.43 mi3.11 mi18263+27011576+10011576+10017549(Top 66%)11273(Top 74%)11273(Top 503%)
Half13.11 mi0.68 mi18275-1211577-111577-118437(Top 69%)11676(Top 77%)11676(Top 521%)
25K15.53 mi2.42 mi18281-611564+1311564+1318327(Top 69%)11562(Top 76%)11562(Top 516%)
30K18.64 mi3.11 mi18291-1011537+2711537+2718432(Top 69%)11530(Top 76%)11530(Top 515%)
20M20.00 mi1.36 mi18244+4711498+3911498+3917651(Top 66%)11081(Top 73%)11081(Top 494%)
21M21.00 mi1.00 mi18243+111479+1911479+1918021(Top 68%)11228(Top 74%)11228(Top 501%)
35K21.75 mi0.75 mi18238+511471+811471+818362(Top 69%)11308(Top 75%)11308(Top 505%)
23M23.00 mi1.25 mi18258-2011475-411475-418483(Top 69%)11342(Top 75%)11342(Top 506%)
24M24.00 mi1.00 mi18291-3311476-111476-118766(Top 70%)11435(Top 75%)11435(Top 510%)
40K24.85 mi0.85 mi18312-2111471+511471+518369(Top 69%)11206(Top 74%)11206(Top 500%)
25.2M25.20 mi0.35 mi18315-311470+111470+118580(Top 70%)11289(Top 74%)11289(Top 504%)
Finish26.22 mi1.02 mi18432-11711513-4311513-4320404(Top 77%)12138(Top 80%)12138(Top 542%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

18179

Males

11552

M40-44

11552

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

18297

Males

11620

M40-44

11620

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

18179

Males

11552

M40-44

11552

15K→20K

9.3 - 12.4 mi

Top 66%
×5story building
+106ft-86ft

Overall

17549

Males

11273

M40-44

11273

20K→Half

12.4 - 13.1 mi

Top 69%
×2story building
+19ft-37ft

Overall

18437

Males

11676

M40-44

11676

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

18327

Males

11562

M40-44

11562

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

18432

Males

11530

M40-44

11530

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

17651

Males

11081

M40-44

11081

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

18021

Males

11228

M40-44

11228

21M→35K

21.0 - 21.8 mi

Top 69%
×7story building
+17ft-86ft

Overall

18362

Males

11308

M40-44

11308

35K→23M

21.8 - 23.0 mi

Top 69%
×5story building
+23ft-63ft

Overall

18483

Males

11342

M40-44

11342

23M→24M

23.0 - 24.0 mi

Top 70%
×6story building
+12ft-82ft

Overall

18766

Males

11435

M40-44

11435

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

18369

Males

11206

M40-44

11206

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

18580

Males

11289

M40-44

11289

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

20404

Males

12138

M40-44

12138

Passing Analysis

Category:
Athletes Passed
2085
Passed By
1260
Net Change
+825
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19257
5K → 10K703169+534#19257#18723
10K → 15K28797+190#18723#18533
15K → 20K31949+270#18533#18263
20K → Half1931-12#18263#18275
Half → 25K126132-6#18275#18281
25K → 30K174184-10#18281#18291
30K → 20M11265+47#18291#18244
20M → 21M9695+1#18244#18243
21M → 35K5348+5#18243#18238
35K → 23M7090-20#18238#18258
23M → 24M4073-33#18258#18291
24M → 40K4364-21#18291#18312
40K → 25.2M2326-3#18312#18315
25.2M → Finish20137-117#18315#18432
TOTALS20851260+825
📊

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