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BOSTON MARATHON 2023

Matthew Gruzd

Bib: 30281•M

AB

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

Start
0:00:00
Race begins
5K· 3.11 mi
30:07
Rank: #22635
Start → 5K
30:07 | 9:42/mi
10K· 6.21 mi
57:35
Rank: #21629 (+1006)
5K → 10K
27:28 | 8:50/mi
15K· 9.32 mi
1:25:32
Rank: #21281 (+348)
10K → 15K
27:57 | 9:00/mi
20K· 12.43 mi
1:53:25
Rank: #20896 (+385)
15K → 20K
27:53 | 8:58/mi
Half· 13.11 mi
1:59:21
Rank: #20795 (+101)
20K → Half
5:56 | 8:42/mi
25K· 15.53 mi
2:21:43
Rank: #20652 (+143)
Half → 25K
22:22 | 9:13/mi
30K· 18.64 mi
2:52:12
Rank: #20597 (+55)
25K → 30K
30:29 | 9:49/mi
20M
3:05:43
Rank: #20567 (+30)
30K → 20M
13:31 | 9:57/mi
21M
3:15:49
Rank: #20430 (+137)
20M → 21M
10:06 | 10:06/mi
35K· 21.75 mi
3:22:36
Rank: #20329 (+101)
21M → 35K
6:47 | 9:04/mi
23M
3:34:36
Rank: #20236 (+93)
35K → 23M
12:00 | 9:35/mi
24M
3:43:55
Rank: #20165 (+71)
23M → 24M
9:19 | 9:19/mi
40K· 24.85 mi
3:52:14
Rank: #20132 (+33)
24M → 40K
8:19 | 9:44/mi
25.2M
3:56:10
Rank: #20144 (-12)
40K → 25.2M
3:56 | 11:24/mi
Finish· 26.22 mi
4:05:56
Rank: #20149 (-5)
25.2M → Finish
9:46 | 9:35/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:21
Pace9:06 /mi
2nd Half
Distance13.11 mi
Time2:06:35
Pace9:39 /mi
📊Positive Split: 6.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:5330:079:4230:07
9:42
-
10K
6.21 mi12:16:2157:359:1627:28
8:50
-0:52
15K
9.32 mi12:44:181:25:329:1127:57
9:00
+0:10
20K
12.43 mi13:12:111:53:259:0827:53
8:58
-0:02
Half
13.11 mi13:18:071:59:219:065:56
8:42
-0:16
25K
15.53 mi13:40:292:21:439:0722:22
9:13
+0:31
30K
18.64 mi14:10:582:52:129:1430:29
9:49
+0:36
20M
20.00 mi14:24:293:05:439:1713:31
9:57
+0:08
21M
21.00 mi14:34:353:15:499:1910:06
10:06
+0:09
35K
21.75 mi14:41:223:22:369:196:47
9:04
-1:02
23M
23.00 mi14:53:223:34:369:2012:00
9:35
+0:31
24M
24.00 mi15:02:413:43:559:209:19
9:19
-0:16
40K
24.85 mi15:11:003:52:149:218:19
9:44
+0:25
25.2M
25.20 mi15:14:563:56:109:223:56
11:24
+1:40
Finish
26.22 mi15:24:424:05:569:239:46
9:35
-1:49

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

8:42 /mi

Average Pace

9:23 /mi

Slowest Pace

11:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:58:23

48% of race

Time at Steady Pace

1:40:00

41% of race

Time at Slower Pace

27:33

11% of race

Average Pace: 9:23 /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 mi11:48:5330:079:4230:07
9:42
#22635
10K
6.21 mi12:16:2157:359:1627:28
8:50
#21629
15K
9.32 mi12:44:181:25:329:1127:57
9:00
#21281
20K
12.43 mi13:12:111:53:259:0827:53
8:58
#20896
Half
13.11 mi13:18:071:59:219:065:56
8:42
#20795
25K
15.53 mi13:40:292:21:439:0722:22
9:13
#20652
30K
18.64 mi14:10:582:52:129:1430:29
9:49
#20597
20M
20.00 mi14:24:293:05:439:1713:31
9:57
#20567
21M
21.00 mi14:34:353:15:499:1910:06
10:06
#20430
35K
21.75 mi14:41:223:22:369:196:47
9:04
#20329
23M
23.00 mi14:53:223:34:369:2012:00
9:35
#20236
24M
24.00 mi15:02:413:43:559:209:19
9:19
#20165
40K
24.85 mi15:11:003:52:149:218:19
9:44
#20132
25.2M
25.20 mi15:14:563:56:109:223:56
11:24
#20144
Finish
26.22 mi15:24:424:05:569:239:46
9:35
#20149
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi22635134101341020486(Top 77%)12518(Top 82%)12518(Top 559%)
10K6.21 mi3.10 mi21629+100612957+45312957+45320133(Top 76%)12337(Top 81%)12337(Top 551%)
15K9.32 mi3.11 mi21281+34812829+12812829+12820486(Top 77%)12518(Top 82%)12518(Top 559%)
20K12.43 mi3.11 mi20896+38512659+17012659+17019577(Top 74%)12137(Top 80%)12137(Top 542%)
Half13.11 mi0.68 mi20795+10112617+4212617+4218901(Top 71%)11866(Top 78%)11866(Top 529%)
25K15.53 mi2.42 mi20652+14312559+5812559+5819932(Top 75%)12260(Top 81%)12260(Top 547%)
30K18.64 mi3.11 mi20597+5512517+4212517+4220475(Top 77%)12410(Top 82%)12410(Top 554%)
20M20.00 mi1.36 mi20567+3012488+2912488+2920324(Top 76%)12261(Top 81%)12261(Top 547%)
21M21.00 mi1.00 mi20430+13712422+6612422+6618382(Top 69%)11380(Top 75%)11380(Top 508%)
35K21.75 mi0.75 mi20329+10112361+6112361+6118159(Top 68%)11222(Top 74%)11222(Top 501%)
23M23.00 mi1.25 mi20236+9312313+4812313+4818660(Top 70%)11423(Top 75%)11423(Top 510%)
24M24.00 mi1.00 mi20165+7112271+4212271+4218516(Top 70%)11322(Top 75%)11322(Top 505%)
40K24.85 mi0.85 mi20132+3312251+2012251+2019107(Top 72%)11543(Top 76%)11543(Top 515%)
25.2M25.20 mi0.35 mi20144-1212246+512246+521329(Top 80%)12536(Top 83%)12536(Top 559%)
Finish26.22 mi1.02 mi20149-512239+712239+720406(Top 77%)12140(Top 80%)12140(Top 542%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21stories
+97ft-345ft

Overall

20486

Males

12518

M40-44

12518

5K→10K

3.1 - 6.2 mi

Top 76%
×5stories
+79ft-138ft

Overall

20133

Males

12337

M40-44

12337

10K→15K

6.2 - 9.3 mi

Top 77%
×3stories
+67ft-78ft

Overall

20486

Males

12518

M40-44

12518

15K→20K

9.3 - 12.4 mi

Top 74%
×5stories
+106ft-86ft

Overall

19577

Males

12137

M40-44

12137

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

18901

Males

11866

M40-44

11866

Half→25K

13.1 - 15.5 mi

Top 75%
×4stories
+66ft-88ft

Overall

19932

Males

12260

M40-44

12260

25K→30K

15.5 - 18.6 mi

Top 77%
×9stories
+181ft-148ft

Overall

20475

Males

12410

M40-44

12410

30K→20M

18.6 - 20.0 mi

Top 76%
×5stories
+64ft-50ft

Overall

20324

Males

12261

M40-44

12261

20M→21M

20.0 - 21.0 mi

Top 69%
×8stories
+106ft-24ft

Overall

18382

Males

11380

M40-44

11380

21M→35K

21.0 - 21.8 mi

Top 68%
×7stories
+17ft-86ft

Overall

18159

Males

11222

M40-44

11222

35K→23M

21.8 - 23.0 mi

Top 70%
×5stories
+23ft-63ft

Overall

18660

Males

11423

M40-44

11423

23M→24M

23.0 - 24.0 mi

Top 70%
×6stories
+12ft-82ft

Overall

18516

Males

11322

M40-44

11322

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

19107

Males

11543

M40-44

11543

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21329

Males

12536

M40-44

12536

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2stories
+22ft-21ft

Overall

20406

Males

12140

M40-44

12140

Passing Analysis

Category:
Athletes Passed
2931
Passed By
445
Net Change
+2486
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22635
5K → 10K102721+1006#22635#21629
10K → 15K38335+348#21629#21281
15K → 20K40621+385#21281#20896
20K → Half1065+101#20896#20795
Half → 25K18037+143#20795#20652
25K → 30K170115+55#20652#20597
30K → 20M8656+30#20597#20567
20M → 21M15215+137#20567#20430
21M → 35K1087+101#20430#20329
35K → 23M11421+93#20329#20236
23M → 24M8716+71#20236#20165
24M → 40K6128+33#20165#20132
40K → 25.2M1931-12#20132#20144
25.2M → Finish3237-5#20144#20149
TOTALS2931445+2486
📊

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