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BOSTON MARATHON 2023

Matthew Ervin

Bib: 17967•M

MD

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 36%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 39%
Division (M55-59)
#0 / 1422
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
7:35/mi
23:35
↑ 97↓ 3451.5%
10K· 6.21 mi
7:11/mi
45:55
↑ 79↓ 1380.4%
15K· 9.32 mi
7:20/mi
1:08:42
↑ 67↓ 78
20K· 12.43 mi
7:31/mi
1:32:04
↑ 106↓ 860.1%
Half· 13.11 mi
7:14/mi
1:37:00
↑ 19↓ 370.5%
25K· 15.53 mi
7:37/mi
1:55:28
↑ 66↓ 880.2%
30K· 18.64 mi
7:47/mi
2:19:40
↑ 181↓ 1480.2%
20M
8:21/mi
2:31:01
↑ 64↓ 500.2%
21M
8:21/mi
2:39:22
↑ 106↓ 241.6%
35K· 21.75 mi
7:42/mi
2:45:08
↑ 17↓ 861.7%
23M
8:10/mi
2:55:22
↑ 23↓ 630.6%
24M
7:44/mi
3:03:06
↓ 821.3%
40K· 24.85 mi
7:56/mi
3:09:53
↓ 200.3%
25.2M
8:45/mi
3:12:54
↑ 13↓ 160.2%
Finish· 26.22 mi
8:05/mi
3:21:08
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:00
Pace7:24 /mi
2nd Half
Distance13.11 mi
Time1:44:08
Pace7:57 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:2123:357:3523:35
7:35
-
10K
6.21 mi11:36:4145:557:2322:20
7:11
-0:24
15K
9.32 mi11:59:281:08:427:2222:47
7:20
+0:09
20K
12.43 mi12:22:501:32:047:2523:22
7:31
+0:11
Half
13.11 mi12:27:461:37:007:244:56
7:14
-0:17
25K
15.53 mi12:46:141:55:287:2618:28
7:37
+0:23
30K
18.64 mi13:10:262:19:407:3024:12
7:47
+0:10
20M
20.00 mi13:21:472:31:017:3311:21
8:21
+0:34
21M
21.00 mi13:30:082:39:227:358:21
8:21
0:00
35K
21.75 mi13:35:542:45:087:365:46
7:42
-0:39
23M
23.00 mi13:46:082:55:227:3710:14
8:10
+0:28
24M
24.00 mi13:53:523:03:067:387:44
7:44
-0:26
40K
24.85 mi14:00:393:09:537:386:47
7:56
+0:12
25.2M
25.20 mi14:03:403:12:547:393:01
8:45
+0:49
Finish
26.22 mi14:11:543:21:087:418:14
8:05
-0:40

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

7:11 /mi

Average Pace

7:41 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

50:03

25% of race

Time at Steady Pace

1:49:54

55% of race

Time at Slower Pace

41:11

20% of race

Average Pace: 7:40 /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 mi11:14:2123:357:3523:35
7:35
#10434
10K
6.21 mi11:36:4145:557:2322:20
7:11
#9099
15K
9.32 mi11:59:281:08:427:2222:47
7:20
#8981
20K
12.43 mi12:22:501:32:047:2523:22
7:31
#9065
Half
13.11 mi12:27:461:37:007:244:56
7:14
#9016
25K
15.53 mi12:46:141:55:287:2618:28
7:37
#9088
30K
18.64 mi13:10:262:19:407:3024:12
7:47
#9099
20M
20.00 mi13:21:472:31:017:3311:21
8:21
#9368
21M
21.00 mi13:30:082:39:227:358:21
8:21
#9335
35K
21.75 mi13:35:542:45:087:365:46
7:42
#9337
23M
23.00 mi13:46:082:55:227:3710:14
8:10
#9406
24M
24.00 mi13:53:523:03:067:387:44
7:44
#9379
40K
24.85 mi14:00:393:09:537:386:47
7:56
#9371
25.2M
25.20 mi14:03:403:12:547:393:01
8:45
#9383
Finish
26.22 mi14:11:543:21:087:418:14
8:05
#9486
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi10434836883688824(Top 33%)7438(Top 49%)7438(Top 523%)
10K6.21 mi3.10 mi9099+13357632+7367632+7368020(Top 30%)6957(Top 46%)6957(Top 489%)
15K9.32 mi3.11 mi8981+1187551+817551+818824(Top 33%)7438(Top 49%)7438(Top 523%)
20K12.43 mi3.11 mi9065-847591-407591-409463(Top 36%)7776(Top 51%)7776(Top 547%)
Half13.11 mi0.68 mi9016+497554+377554+378097(Top 30%)6969(Top 46%)6969(Top 490%)
25K15.53 mi2.42 mi9088-727602-487602-489659(Top 36%)7794(Top 51%)7794(Top 548%)
30K18.64 mi3.11 mi9099-117565+377565+379270(Top 35%)7437(Top 49%)7437(Top 523%)
20M20.00 mi1.36 mi9368-2697696-1317696-13112657(Top 48%)8968(Top 59%)8968(Top 631%)
21M21.00 mi1.00 mi9335+337655+417655+419585(Top 36%)7376(Top 49%)7376(Top 519%)
35K21.75 mi0.75 mi9337-27638+177638+179950(Top 37%)7604(Top 50%)7604(Top 535%)
23M23.00 mi1.25 mi9406-697666-287666-2810958(Top 41%)7939(Top 52%)7939(Top 558%)
24M24.00 mi1.00 mi9379+277615+517615+519279(Top 35%)7031(Top 46%)7031(Top 494%)
40K24.85 mi0.85 mi9371+87583+327583+329564(Top 36%)7111(Top 47%)7111(Top 500%)
25.2M25.20 mi0.35 mi9383-127576+77576+710945(Top 41%)7756(Top 51%)7756(Top 545%)
Finish26.22 mi1.02 mi9486-1037615-397615-3912623(Top 47%)8583(Top 57%)8583(Top 604%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21story building
+97ft-345ft

Overall

8824

Males

7438

M55-59

7438

5K→10K

3.1 - 6.2 mi

Top 30%
×5story building
+79ft-138ft

Overall

8020

Males

6957

M55-59

6957

10K→15K

6.2 - 9.3 mi

Top 33%
×3story building
+67ft-78ft

Overall

8824

Males

7438

M55-59

7438

15K→20K

9.3 - 12.4 mi

Top 36%
×5story building
+106ft-86ft

Overall

9463

Males

7776

M55-59

7776

20K→Half

12.4 - 13.1 mi

Top 30%
×2story building
+19ft-37ft

Overall

8097

Males

6969

M55-59

6969

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9659

Males

7794

M55-59

7794

25K→30K

15.5 - 18.6 mi

Top 35%
×9story building
+181ft-148ft

Overall

9270

Males

7437

M55-59

7437

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

12657

Males

8968

M55-59

8968

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

9585

Males

7376

M55-59

7376

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

9950

Males

7604

M55-59

7604

35K→23M

21.8 - 23.0 mi

Top 41%
×5story building
+23ft-63ft

Overall

10958

Males

7939

M55-59

7939

23M→24M

23.0 - 24.0 mi

Top 35%
×6story building
+12ft-82ft

Overall

9279

Males

7031

M55-59

7031

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

9564

Males

7111

M55-59

7111

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

10945

Males

7756

M55-59

7756

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

12623

Males

8583

M55-59

8583

Passing Analysis

Category:
Athletes Passed
2405*
Passed By
1457
Net Change
+948
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10434
5K → 10K1361*26+1335#10434#9099
10K → 15K20183+118#9099#8981
15K → 20K102186-84#8981#9065
20K → Half545+49#9065#9016
Half → 25K87159-72#9016#9088
25K → 30K164175-11#9088#9099
30K → 20M25294-269#9099#9368
20M → 21M10370+33#9368#9335
21M → 35K4648-2#9335#9337
35K → 23M58127-69#9337#9406
23M → 24M8457+27#9406#9379
24M → 40K7062+8#9379#9371
40K → 25.2M2335-12#9371#9383
25.2M → Finish27130-103#9383#9486
TOTALS2405*1457+948

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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