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BOSTON MARATHON 2023

Matthew Chase

Bib: 4879•M

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 21%
Gender (Male)
#0 / 15176
Top 34%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:27
Rank: #5596
Start → 5K
21:27 | 6:54/mi
10K· 6.21 mi
43:14
Rank: #6252 (-656)
5K → 10K
21:47 | 7:01/mi
15K· 9.32 mi
1:05:21
Rank: #6567 (-315)
10K → 15K
22:07 | 7:07/mi
20K· 12.43 mi
1:27:40
Rank: #6661 (-94)
15K → 20K
22:19 | 7:11/mi
Half· 13.11 mi
1:32:24
Rank: #6633 (+28)
20K → Half
4:44 | 6:56/mi
25K· 15.53 mi
1:49:48
Rank: #6606 (+27)
Half → 25K
17:24 | 7:11/mi
30K· 18.64 mi
2:12:52
Rank: #6554 (+52)
25K → 30K
23:04 | 7:25/mi
20M
2:22:45
Rank: #6451 (+103)
30K → 20M
9:53 | 7:16/mi
21M
2:30:09
Rank: #6284 (+167)
20M → 21M
7:24 | 7:24/mi
35K· 21.75 mi
2:35:10
Rank: #6170 (+114)
21M → 35K
5:01 | 6:42/mi
23M
2:44:15
Rank: #6050 (+120)
35K → 23M
9:05 | 7:15/mi
24M
2:51:22
Rank: #5967 (+83)
23M → 24M
7:07 | 7:07/mi
40K· 24.85 mi
2:57:38
Rank: #5912 (+55)
24M → 40K
6:16 | 7:20/mi
25.2M
3:00:16
Rank: #5871 (+41)
40K → 25.2M
2:38 | 7:38/mi
Finish· 26.22 mi
3:06:53
Rank: #5671 (+200)
25.2M → Finish
6:37 | 6:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:24
Pace7:03 /mi
2nd Half
Distance13.11 mi
Time1:34:29
Pace7:12 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:2621:276:5421:27
6:54
-
10K
6.21 mi10:45:1343:146:5721:47
7:01
+0:07
15K
9.32 mi11:07:201:05:217:0122:07
7:07
+0:06
20K
12.43 mi11:29:391:27:407:0322:19
7:11
+0:04
Half
13.11 mi11:34:231:32:247:034:44
6:56
-0:15
25K
15.53 mi11:51:471:49:487:0417:24
7:11
+0:15
30K
18.64 mi12:14:512:12:527:0823:04
7:25
+0:14
20M
20.00 mi12:24:442:22:457:089:53
7:16
-0:09
21M
21.00 mi12:32:082:30:097:097:24
7:24
+0:08
35K
21.75 mi12:37:092:35:107:085:01
6:42
-0:42
23M
23.00 mi12:46:142:44:157:089:05
7:15
+0:33
24M
24.00 mi12:53:212:51:227:087:07
7:07
-0:08
40K
24.85 mi12:59:372:57:387:096:16
7:20
+0:13
25.2M
25.20 mi13:02:153:00:167:092:38
7:38
+0:18
Finish
26.22 mi13:08:523:06:537:086:37
6:30
-1:08

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

6:30 /mi

Average Pace

7:08 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:50

48% of race

Time at Steady Pace

1:38:03

52% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:08 /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 mi10:23:2621:276:5421:27
6:54
#5596
10K
6.21 mi10:45:1343:146:5721:47
7:01
#6252
15K
9.32 mi11:07:201:05:217:0122:07
7:07
#6567
20K
12.43 mi11:29:391:27:407:0322:19
7:11
#6661
Half
13.11 mi11:34:231:32:247:034:44
6:56
#6633
25K
15.53 mi11:51:471:49:487:0417:24
7:11
#6606
30K
18.64 mi12:14:512:12:527:0823:04
7:25
#6554
20M
20.00 mi12:24:442:22:457:089:53
7:16
#6451
21M
21.00 mi12:32:082:30:097:097:24
7:24
#6284
35K
21.75 mi12:37:092:35:107:085:01
6:42
#6170
23M
23.00 mi12:46:142:44:157:089:05
7:15
#6050
24M
24.00 mi12:53:212:51:227:087:07
7:07
#5967
40K
24.85 mi12:59:372:57:387:096:16
7:20
#5912
25.2M
25.20 mi13:02:153:00:167:092:38
7:38
#5871
Finish
26.22 mi13:08:523:06:537:086:37
6:30
#5671
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5596515551557239(Top 27%)6410(Top 42%)6410(Top 121%)
10K6.21 mi3.10 mi6252-6565678-5235678-5236889(Top 26%)6150(Top 41%)6150(Top 116%)
15K9.32 mi3.11 mi6567-3155926-2485926-2487239(Top 27%)6410(Top 42%)6410(Top 121%)
20K12.43 mi3.11 mi6661-945982-565982-566975(Top 26%)6191(Top 41%)6191(Top 117%)
Half13.11 mi0.68 mi6633+285958+245958+246181(Top 23%)5624(Top 37%)5624(Top 106%)
25K15.53 mi2.42 mi6606+275935+235935+236524(Top 25%)5814(Top 38%)5814(Top 110%)
30K18.64 mi3.11 mi6554+525885+505885+506730(Top 25%)5880(Top 39%)5880(Top 111%)
20M20.00 mi1.36 mi6451+1035793+925793+925485(Top 21%)4916(Top 32%)4916(Top 93%)
21M21.00 mi1.00 mi6284+1675656+1375656+1374130(Top 16%)3799(Top 25%)3799(Top 72%)
35K21.75 mi0.75 mi6170+1145563+935563+933643(Top 14%)3377(Top 22%)3377(Top 64%)
23M23.00 mi1.25 mi6050+1205458+1055458+1055071(Top 19%)4520(Top 30%)4520(Top 86%)
24M24.00 mi1.00 mi5967+835382+765382+765280(Top 20%)4625(Top 30%)4625(Top 88%)
40K24.85 mi0.85 mi5912+555327+555327+555631(Top 21%)4778(Top 31%)4778(Top 90%)
25.2M25.20 mi0.35 mi5871+415294+335294+334553(Top 17%)3966(Top 26%)3966(Top 75%)
Finish26.22 mi1.02 mi5671+2005128+1665128+1662472(Top 9%)2280(Top 15%)2280(Top 43%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

7239

Males

6410

M18-39

6410

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

6889

Males

6150

M18-39

6150

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

7239

Males

6410

M18-39

6410

15K→20K

9.3 - 12.4 mi

Top 26%
×5stories
+106ft-86ft

Overall

6975

Males

6191

M18-39

6191

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6181

Males

5624

M18-39

5624

Half→25K

13.1 - 15.5 mi

Top 25%
×4stories
+66ft-88ft

Overall

6524

Males

5814

M18-39

5814

25K→30K

15.5 - 18.6 mi

Top 25%
×9stories
+181ft-148ft

Overall

6730

Males

5880

M18-39

5880

30K→20M

18.6 - 20.0 mi

Top 21%
×5stories
+64ft-50ft

Overall

5485

Males

4916

M18-39

4916

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4130

Males

3799

M18-39

3799

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

3643

Males

3377

M18-39

3377

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5071

Males

4520

M18-39

4520

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5280

Males

4625

M18-39

4625

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5631

Males

4778

M18-39

4778

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4553

Males

3966

M18-39

3966

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2472

Males

2280

M18-39

2280

Passing Analysis

Category:
Athletes Passed
1359
Passed By
1434
Net Change
-75
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5596
5K → 10K29685-656#5596#6252
10K → 15K37352-315#6252#6567
15K → 20K75169-94#6567#6661
20K → Half346+28#6661#6633
Half → 25K9568+27#6633#6606
25K → 30K13179+52#6606#6554
30K → 20M12320+103#6554#6451
20M → 21M1703+167#6451#6284
21M → 35K1162+114#6284#6170
35K → 23M1277+120#6170#6050
23M → 24M9815+83#6050#5967
24M → 40K7722+55#5967#5912
40K → 25.2M443+41#5912#5871
25.2M → Finish2033+200#5871#5671
TOTALS13591434-75
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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