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BOSTON MARATHON 2023

Mark Lazzara

Bib: 5820•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 25%
Gender (Male)
#0 / 15176
Top 38%
Masters (Masters Men)
#0 / 9891
Top 24%
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
21:22
Rank: #5384
Start → 5K
21:22 | 6:53/mi
10K· 6.21 mi
42:36
Rank: #5467 (-83)
5K → 10K
21:14 | 6:50/mi
15K· 9.32 mi
1:04:08
Rank: #5712 (-245)
10K → 15K
21:32 | 6:56/mi
20K· 12.43 mi
1:25:32
Rank: #5581 (+131)
15K → 20K
21:24 | 6:53/mi
Half· 13.11 mi
1:30:13
Rank: #5589 (-8)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:47:02
Rank: #5514 (+75)
Half → 25K
16:49 | 6:56/mi
30K· 18.64 mi
2:09:00
Rank: #5330 (+184)
25K → 30K
21:58 | 7:04/mi
20M
2:18:49
Rank: #5296 (+34)
30K → 20M
9:49 | 7:13/mi
21M
2:26:23
Rank: #5222 (+74)
20M → 21M
7:34 | 7:34/mi
35K· 21.75 mi
2:32:01
Rank: #5326 (-104)
21M → 35K
5:38 | 7:32/mi
23M
2:41:51
Rank: #5445 (-119)
35K → 23M
9:50 | 7:51/mi
24M
2:51:40
Rank: #6048 (-603)
23M → 24M
9:49 | 9:49/mi
40K· 24.85 mi
2:59:27
Rank: #6363 (-315)
24M → 40K
7:47 | 9:06/mi
25.2M
3:02:24
Rank: #6386 (-23)
40K → 25.2M
2:57 | 8:33/mi
Finish· 26.22 mi
3:10:32
Rank: #6538 (-152)
25.2M → Finish
8:08 | 7:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:13
Pace6:53 /mi
2nd Half
Distance13.11 mi
Time1:40:19
Pace7:39 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:0121:226:5321:22
6:53
-
10K
6.21 mi10:45:1542:366:5121:14
6:50
-0:03
15K
9.32 mi11:06:471:04:086:5321:32
6:56
+0:06
20K
12.43 mi11:28:111:25:326:5321:24
6:53
-0:03
Half
13.11 mi11:32:521:30:136:534:41
6:52
-0:01
25K
15.53 mi11:49:411:47:026:5316:49
6:56
+0:04
30K
18.64 mi12:11:392:09:006:5521:58
7:04
+0:08
20M
20.00 mi12:21:282:18:496:569:49
7:13
+0:09
21M
21.00 mi12:29:022:26:236:587:34
7:34
+0:21
35K
21.75 mi12:34:402:32:016:595:38
7:32
-0:02
23M
23.00 mi12:44:302:41:517:029:50
7:51
+0:19
24M
24.00 mi12:54:192:51:407:099:49
9:49
+1:58
40K
24.85 mi13:02:062:59:277:137:47
9:06
-0:43
25.2M
25.20 mi13:05:033:02:247:142:57
8:33
-0:33
Finish
26.22 mi13:13:113:10:327:168:08
7:59
-0:34

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

6:50 /mi

Average Pace

7:16 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:32:01

80% of race

Time at Slower Pace

38:31

20% of race

Average Pace: 7:16 /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 mi10:24:0121:226:5321:22
6:53
#5384
10K
6.21 mi10:45:1542:366:5121:14
6:50
#5467
15K
9.32 mi11:06:471:04:086:5321:32
6:56
#5712
20K
12.43 mi11:28:111:25:326:5321:24
6:53
#5581
Half
13.11 mi11:32:521:30:136:534:41
6:52
#5589
25K
15.53 mi11:49:411:47:026:5316:49
6:56
#5514
30K
18.64 mi12:11:392:09:006:5521:58
7:04
#5330
20M
20.00 mi12:21:282:18:496:569:49
7:13
#5296
21M
21.00 mi12:29:022:26:236:587:34
7:34
#5222
35K
21.75 mi12:34:402:32:016:595:38
7:32
#5326
23M
23.00 mi12:44:302:41:517:029:50
7:51
#5445
24M
24.00 mi12:54:192:51:407:099:49
9:49
#6048
40K
24.85 mi13:02:062:59:277:137:47
9:06
#6363
25.2M
25.20 mi13:05:033:02:247:142:57
8:33
#6386
Finish
26.22 mi13:13:113:10:327:168:08
7:59
#6538
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5384497549756145(Top 23%)5572(Top 37%)5572(Top 249%)
10K6.21 mi3.10 mi5467-835047-725047-725617(Top 21%)5159(Top 34%)5159(Top 230%)
15K9.32 mi3.11 mi5712-2455246-1995246-1996145(Top 23%)5572(Top 37%)5572(Top 249%)
20K12.43 mi3.11 mi5581+1315145+1015145+1015261(Top 20%)4862(Top 32%)4862(Top 217%)
Half13.11 mi0.68 mi5589-85153-85153-85795(Top 22%)5327(Top 35%)5327(Top 238%)
25K15.53 mi2.42 mi5514+755089+645089+645197(Top 20%)4795(Top 32%)4795(Top 214%)
30K18.64 mi3.11 mi5330+1844922+1674922+1674785(Top 18%)4414(Top 29%)4414(Top 197%)
20M20.00 mi1.36 mi5296+344890+324890+325250(Top 20%)4742(Top 31%)4742(Top 212%)
21M21.00 mi1.00 mi5222+744818+724818+724925(Top 18%)4428(Top 29%)4428(Top 198%)
35K21.75 mi0.75 mi5326-1044899-814899-818677(Top 33%)6894(Top 45%)6894(Top 308%)
23M23.00 mi1.25 mi5445-1194991-924991-928737(Top 33%)6818(Top 45%)6818(Top 304%)
24M24.00 mi1.00 mi6048-6035443-4525443-45220259(Top 76%)12105(Top 80%)12105(Top 540%)
40K24.85 mi0.85 mi6363-3155672-2295672-22916610(Top 62%)10393(Top 68%)10393(Top 464%)
25.2M25.20 mi0.35 mi6386-235685-135685-139758(Top 37%)7144(Top 47%)7144(Top 319%)
Finish26.22 mi1.02 mi6538-1525774-895774-8911941(Top 45%)8239(Top 54%)8239(Top 368%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21stories
+97ft-345ft

Overall

6145

Males

5572

M40-44

5572

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5617

Males

5159

M40-44

5159

10K→15K

6.2 - 9.3 mi

Top 23%
×3stories
+67ft-78ft

Overall

6145

Males

5572

M40-44

5572

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5261

Males

4862

M40-44

4862

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

5795

Males

5327

M40-44

5327

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5197

Males

4795

M40-44

4795

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

4785

Males

4414

M40-44

4414

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5250

Males

4742

M40-44

4742

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

4925

Males

4428

M40-44

4428

21M→35K

21.0 - 21.8 mi

Top 33%
×7stories
+17ft-86ft

Overall

8677

Males

6894

M40-44

6894

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

8737

Males

6818

M40-44

6818

23M→24M

23.0 - 24.0 mi

Top 76%
×6stories
+12ft-82ft

Overall

20259

Males

12105

M40-44

12105

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

16610

Males

10393

M40-44

10393

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9758

Males

7144

M40-44

7144

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2stories
+22ft-21ft

Overall

11941

Males

8239

M40-44

8239

Passing Analysis

Category:
Athletes Passed
1013
Passed By
2167
Net Change
-1154
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5384
5K → 10K166249-83#5384#5467
10K → 15K40285-245#5467#5712
15K → 20K17544+131#5712#5581
20K → Half1422-8#5581#5589
Half → 25K11843+75#5589#5514
25K → 30K22541+184#5514#5330
30K → 20M8450+34#5330#5296
20M → 21M10127+74#5296#5222
21M → 35K12116-104#5222#5326
35K → 23M36155-119#5326#5445
23M → 24M6609-603#5445#6048
24M → 40K5320-315#6048#6363
40K → 25.2M1538-23#6363#6386
25.2M → Finish16168-152#6386#6538
TOTALS10132167-1154
📊

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