Boston Marathon logo
BOSTON MARATHON 2023

Matt Ernst

Bib: 22344•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 (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:12
Rank: #20771
Start → 5K
28:12 | 9:05/mi
10K· 6.21 mi
57:17
Rank: #21465 (-694)
5K → 10K
29:05 | 9:22/mi
15K· 9.32 mi
1:25:30
Rank: #21274 (+191)
10K → 15K
28:13 | 9:05/mi
20K· 12.43 mi
1:55:54
Rank: #21591 (-317)
15K → 20K
30:24 | 9:47/mi
Half· 13.11 mi
2:02:09
Rank: #21559 (+32)
20K → Half
6:15 | 9:10/mi
25K· 15.53 mi
2:25:55
Rank: #21579 (-20)
Half → 25K
23:46 | 9:48/mi
30K· 18.64 mi
2:56:58
Rank: #21469 (+110)
25K → 30K
31:03 | 10:00/mi
20M
3:11:05
Rank: #21467 (+2)
30K → 20M
14:07 | 10:23/mi
21M
3:21:34
Rank: #21339 (+128)
20M → 21M
10:29 | 10:29/mi
35K· 21.75 mi
3:29:06
Rank: #21332 (+7)
21M → 35K
7:32 | 10:04/mi
23M
3:41:51
Rank: #21272 (+60)
35K → 23M
12:45 | 10:11/mi
24M
3:52:16
Rank: #21300 (-28)
23M → 24M
10:25 | 10:25/mi
40K· 24.85 mi
4:01:17
Rank: #21303 (-3)
24M → 40K
9:01 | 10:33/mi
25.2M
4:05:33
Rank: #21331 (-28)
40K → 25.2M
4:16 | 12:22/mi
Finish· 26.22 mi
4:15:31
Rank: #21322 (+9)
25.2M → Finish
9:58 | 9:47/mi

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
Time2:02:09
Pace9:19 /mi
2nd Half
Distance13.11 mi
Time2:13:22
Pace10:10 /mi
📊Positive Split: 9.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:5928:129:0528:12
9:05
-
10K
6.21 mi11:52:0457:179:1329:05
9:22
+0:17
15K
9.32 mi12:20:171:25:309:1028:13
9:05
-0:17
20K
12.43 mi12:50:411:55:549:2030:24
9:47
+0:42
Half
13.11 mi12:56:562:02:099:196:15
9:10
-0:37
25K
15.53 mi13:20:422:25:559:2423:46
9:48
+0:38
30K
18.64 mi13:51:452:56:589:3031:03
10:00
+0:12
20M
20.00 mi14:05:523:11:059:3314:07
10:23
+0:23
21M
21.00 mi14:16:213:21:349:3610:29
10:29
+0:06
35K
21.75 mi14:23:533:29:069:377:32
10:04
-0:25
23M
23.00 mi14:36:383:41:519:3912:45
10:11
+0:07
24M
24.00 mi14:47:033:52:169:4110:25
10:25
+0:14
40K
24.85 mi14:56:044:01:179:429:01
10:33
+0:08
25.2M
25.20 mi15:00:204:05:339:454:16
12:22
+1:49
Finish
26.22 mi15:10:184:15:319:459:58
9:47
-2:35

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

9:05 /mi

Average Pace

9:45 /mi

Slowest Pace

12:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:45

36% of race

Time at Steady Pace

2:09:35

51% of race

Time at Slower Pace

34:11

13% of race

Average Pace: 9:45 /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 mi11:22:5928:129:0528:12
9:05
#20771
10K
6.21 mi11:52:0457:179:1329:05
9:22
#21465
15K
9.32 mi12:20:171:25:309:1028:13
9:05
#21274
20K
12.43 mi12:50:411:55:549:2030:24
9:47
#21591
Half
13.11 mi12:56:562:02:099:196:15
9:10
#21559
25K
15.53 mi13:20:422:25:559:2423:46
9:48
#21579
30K
18.64 mi13:51:452:56:589:3031:03
10:00
#21469
20M
20.00 mi14:05:523:11:059:3314:07
10:23
#21467
21M
21.00 mi14:16:213:21:349:3610:29
10:29
#21339
35K
21.75 mi14:23:533:29:069:377:32
10:04
#21332
23M
23.00 mi14:36:383:41:519:3912:45
10:11
#21272
24M
24.00 mi14:47:033:52:169:4110:25
10:25
#21300
40K
24.85 mi14:56:044:01:179:429:01
10:33
#21303
25.2M
25.20 mi15:00:204:05:339:454:16
12:22
#21331
Finish
26.22 mi15:10:184:15:319:459:58
9:47
#21322
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi20771124971249720863(Top 78%)12680(Top 84%)12680(Top 1142%)
10K6.21 mi3.10 mi21465-69412878-38112878-38122101(Top 83%)13206(Top 87%)13206(Top 1190%)
15K9.32 mi3.11 mi21274+19112825+5312825+5320863(Top 78%)12680(Top 84%)12680(Top 1142%)
20K12.43 mi3.11 mi21591-31712964-13912964-13922361(Top 84%)13337(Top 88%)13337(Top 1202%)
Half13.11 mi0.68 mi21559+3212958+612958+621023(Top 79%)12743(Top 84%)12743(Top 1148%)
25K15.53 mi2.42 mi21579-2012971-1312971-1321740(Top 82%)13019(Top 86%)13019(Top 1173%)
30K18.64 mi3.11 mi21469+11012910+6112910+6121014(Top 79%)12642(Top 83%)12642(Top 1139%)
20M20.00 mi1.36 mi21467+212896+1412896+1421489(Top 81%)12773(Top 84%)12773(Top 1151%)
21M21.00 mi1.00 mi21339+12812822+7412822+7419545(Top 73%)11858(Top 78%)11858(Top 1068%)
35K21.75 mi0.75 mi21332+712814+812814+821467(Top 81%)12694(Top 84%)12694(Top 1144%)
23M23.00 mi1.25 mi21272+6012768+4612768+4620514(Top 77%)12255(Top 81%)12255(Top 1104%)
24M24.00 mi1.00 mi21300-2812771-312771-321832(Top 82%)12792(Top 84%)12792(Top 1152%)
40K24.85 mi0.85 mi21303-312764+712764+721305(Top 80%)12504(Top 82%)12504(Top 1126%)
25.2M25.20 mi0.35 mi21331-2812773-912773-923074(Top 87%)13344(Top 88%)13344(Top 1202%)
Finish26.22 mi1.02 mi21322+912764+912764+921071(Top 79%)12452(Top 82%)12452(Top 1122%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21stories
+97ft-345ft

Overall

20863

Males

12680

M60-64

12680

5K→10K

3.1 - 6.2 mi

Top 83%
×5stories
+79ft-138ft

Overall

22101

Males

13206

M60-64

13206

10K→15K

6.2 - 9.3 mi

Top 78%
×3stories
+67ft-78ft

Overall

20863

Males

12680

M60-64

12680

15K→20K

9.3 - 12.4 mi

Top 84%
×5stories
+106ft-86ft

Overall

22361

Males

13337

M60-64

13337

20K→Half

12.4 - 13.1 mi

Top 79%
×2stories
+19ft-37ft

Overall

21023

Males

12743

M60-64

12743

Half→25K

13.1 - 15.5 mi

Top 82%
×4stories
+66ft-88ft

Overall

21740

Males

13019

M60-64

13019

25K→30K

15.5 - 18.6 mi

Top 79%
×9stories
+181ft-148ft

Overall

21014

Males

12642

M60-64

12642

30K→20M

18.6 - 20.0 mi

Top 81%
×5stories
+64ft-50ft

Overall

21489

Males

12773

M60-64

12773

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

19545

Males

11858

M60-64

11858

21M→35K

21.0 - 21.8 mi

Top 81%
×7stories
+17ft-86ft

Overall

21467

Males

12694

M60-64

12694

35K→23M

21.8 - 23.0 mi

Top 77%
×5stories
+23ft-63ft

Overall

20514

Males

12255

M60-64

12255

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

21832

Males

12792

M60-64

12792

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21305

Males

12504

M60-64

12504

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

23074

Males

13344

M60-64

13344

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2stories
+22ft-21ft

Overall

21071

Males

12452

M60-64

12452

Passing Analysis

Category:
Athletes Passed
1191
Passed By
1742
Net Change
-551
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20771
5K → 10K74768-694#20771#21465
10K → 15K27584+191#21465#21274
15K → 20K50367-317#21274#21591
20K → Half4311+32#21591#21559
Half → 25K98118-20#21559#21579
25K → 30K17767+110#21579#21469
30K → 20M7472+2#21469#21467
20M → 21M14012+128#21467#21339
21M → 35K3225+7#21339#21332
35K → 23M9939+60#21332#21272
23M → 24M3866-28#21272#21300
24M → 40K3942-3#21300#21303
40K → 25.2M1543-28#21303#21331
25.2M → Finish3728+9#21331#21322
TOTALS11911742-551
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing