Boston Marathon logo
BOSTON MARATHON 2023

Henri Coeme

Bib: 20345•M

MO

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M70-74)
#0 / 213
Top 5%
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
7:50/mi
24:20
↑ 97↓ 3451.5%
10K· 6.21 mi
7:52/mi
48:45
↑ 79↓ 1380.4%
15K· 9.32 mi
8:11/mi
1:14:11
↑ 67↓ 78
20K· 12.43 mi
8:18/mi
1:39:57
↑ 106↓ 860.1%
Half· 13.11 mi
8:05/mi
1:45:28
↑ 19↓ 370.5%
25K· 15.53 mi
8:13/mi
2:05:24
↑ 66↓ 880.2%
30K· 18.64 mi
8:38/mi
2:32:14
↑ 181↓ 1480.2%
20M
8:36/mi
2:43:55
↑ 64↓ 500.2%
21M
9:19/mi
2:53:14
↑ 106↓ 241.6%
35K· 21.75 mi
8:08/mi
2:59:19
↑ 17↓ 861.7%
23M
8:37/mi
3:10:06
↑ 23↓ 630.6%
24M
8:27/mi
3:18:33
↓ 821.3%
40K· 24.85 mi
8:39/mi
3:25:57
↓ 200.3%
25.2M
9:37/mi
3:29:16
↑ 13↓ 160.2%
Finish· 26.22 mi
8:36/mi
3:38:02
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:28
Pace8:03 /mi
2nd Half
Distance13.11 mi
Time1:52:34
Pace8:35 /mi
📊Positive Split: 6.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:40:3324:207:5024:20
7:50
-
10K
6.21 mi12:04:5848:457:5124:25
7:52
+0:02
15K
9.32 mi12:30:241:14:117:5825:26
8:11
+0:19
20K
12.43 mi12:56:101:39:578:0325:46
8:18
+0:07
Half
13.11 mi13:01:411:45:288:035:31
8:05
-0:13
25K
15.53 mi13:21:372:05:248:0419:56
8:13
+0:08
30K
18.64 mi13:48:272:32:148:1026:50
8:38
+0:25
20M
20.00 mi14:00:082:43:558:1211:41
8:36
-0:02
21M
21.00 mi14:09:272:53:148:159:19
9:19
+0:43
35K
21.75 mi14:15:322:59:198:156:05
8:08
-1:11
23M
23.00 mi14:26:193:10:068:1610:47
8:37
+0:29
24M
24.00 mi14:34:463:18:338:168:27
8:27
-0:10
40K
24.85 mi14:42:103:25:578:177:24
8:39
+0:12
25.2M
25.20 mi14:45:293:29:168:183:19
9:37
+0:58
Finish
26.22 mi14:54:153:38:028:198:46
8:36
-1:01

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

7:50 /mi

Average Pace

8:19 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:25:47

39% of race

Time at Steady Pace

1:59:37

55% of race

Time at Slower Pace

12:38

6% of race

Average Pace: 8:19 /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 mi11:40:3324:207:5024:20
7:50
#12668
10K
6.21 mi12:04:5848:457:5124:25
7:52
#13152
15K
9.32 mi12:30:241:14:117:5825:26
8:11
#14042
20K
12.43 mi12:56:101:39:578:0325:46
8:18
#14408
Half
13.11 mi13:01:411:45:288:035:31
8:05
#14468
25K
15.53 mi13:21:372:05:248:0419:56
8:13
#14446
30K
18.64 mi13:48:272:32:148:1026:50
8:38
#14566
20M
20.00 mi14:00:082:43:558:1211:41
8:36
#14522
21M
21.00 mi14:09:272:53:148:159:19
9:19
#14538
35K
21.75 mi14:15:322:59:198:156:05
8:08
#14498
23M
23.00 mi14:26:193:10:068:1610:47
8:37
#14435
24M
24.00 mi14:34:463:18:338:168:27
8:27
#14397
40K
24.85 mi14:42:103:25:578:177:24
8:39
#14385
25.2M
25.20 mi14:45:293:29:168:183:19
9:37
#14400
Finish
26.22 mi14:54:153:38:028:198:46
8:36
#14436
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi126689392939215742(Top 59%)10586(Top 70%)10586(Top 4970%)
10K6.21 mi3.10 mi13152-4849598-2069598-20613628(Top 51%)9804(Top 65%)9804(Top 4603%)
15K9.32 mi3.11 mi14042-8909939-3419939-34115742(Top 59%)10586(Top 70%)10586(Top 4970%)
20K12.43 mi3.11 mi14408-36610072-13310072-13315562(Top 58%)10470(Top 69%)10470(Top 4915%)
Half13.11 mi0.68 mi14468-6010094-2210094-2214986(Top 56%)10286(Top 68%)10286(Top 4829%)
25K15.53 mi2.42 mi14446+2210056+3810056+3814381(Top 54%)9923(Top 65%)9923(Top 4659%)
30K18.64 mi3.11 mi14566-12010064-810064-815135(Top 57%)10094(Top 67%)10094(Top 4739%)
20M20.00 mi1.36 mi14522+4410020+4410020+4414228(Top 53%)9658(Top 64%)9658(Top 4534%)
21M21.00 mi1.00 mi14538-1610003+1710003+1715049(Top 57%)9945(Top 66%)9945(Top 4669%)
35K21.75 mi0.75 mi14498+409975+289975+2812981(Top 49%)8979(Top 59%)8979(Top 4215%)
23M23.00 mi1.25 mi14435+639922+539922+5313849(Top 52%)9301(Top 61%)9301(Top 4367%)
24M24.00 mi1.00 mi14397+389889+339889+3314167(Top 53%)9378(Top 62%)9378(Top 4403%)
40K24.85 mi0.85 mi14385+129859+309859+3014254(Top 54%)9353(Top 62%)9353(Top 4391%)
25.2M25.20 mi0.35 mi14400-159856+39856+315677(Top 59%)9965(Top 66%)9965(Top 4678%)
Finish26.22 mi1.02 mi14436-369855+19855+115972(Top 60%)10158(Top 67%)10158(Top 4769%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

15742

Males

10586

M70-74

10586

5K→10K

3.1 - 6.2 mi

Top 51%
×5story building
+79ft-138ft

Overall

13628

Males

9804

M70-74

9804

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

15742

Males

10586

M70-74

10586

15K→20K

9.3 - 12.4 mi

Top 58%
×5story building
+106ft-86ft

Overall

15562

Males

10470

M70-74

10470

20K→Half

12.4 - 13.1 mi

Top 56%
×2story building
+19ft-37ft

Overall

14986

Males

10286

M70-74

10286

Half→25K

13.1 - 15.5 mi

Top 54%
×4story building
+66ft-88ft

Overall

14381

Males

9923

M70-74

9923

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

15135

Males

10094

M70-74

10094

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

14228

Males

9658

M70-74

9658

20M→21M

20.0 - 21.0 mi

Top 57%
×8story building
+106ft-24ft

Overall

15049

Males

9945

M70-74

9945

21M→35K

21.0 - 21.8 mi

Top 49%
×7story building
+17ft-86ft

Overall

12981

Males

8979

M70-74

8979

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

13849

Males

9301

M70-74

9301

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

14167

Males

9378

M70-74

9378

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14254

Males

9353

M70-74

9353

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

15677

Males

9965

M70-74

9965

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2story building
+22ft-21ft

Overall

15972

Males

10158

M70-74

10158

Passing Analysis

Category:
Athletes Passed
1147
Passed By
2915
Net Change
-1768
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12668
5K → 10K135619-484#12668#13152
10K → 15K29919-890#13152#14042
15K → 20K93459-366#14042#14408
20K → Half1373-60#14408#14468
Half → 25K156134+22#14468#14446
25K → 30K130250-120#14446#14566
30K → 20M11066+44#14566#14522
20M → 21M7692-16#14522#14538
21M → 35K6626+40#14538#14498
35K → 23M11047+63#14498#14435
23M → 24M9153+38#14435#14397
24M → 40K6452+12#14397#14385
40K → 25.2M2439-15#14385#14400
25.2M → Finish5086-36#14400#14436
TOTALS11472915-1768
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing