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BOSTON MARATHON 2024

Chad Lazaro

Bib: 2210•M

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 12%
Gender (Male)
#0 / 14578
Top 20%
Division (M18-39)
#0 / 4849
Top 41%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:38
Rank: #2204
Start → 5K
19:38 | 6:19/mi
10K· 6.21 mi
39:08
Rank: #1974 (+230)
5K → 10K
19:30 | 6:17/mi
15K· 9.32 mi
58:36
Rank: #1819 (+155)
10K → 15K
19:28 | 6:16/mi
20K· 12.43 mi
1:18:19
Rank: #1712 (+107)
15K → 20K
19:43 | 6:21/mi
Half· 13.11 mi
1:22:37
Rank: #1702 (+10)
20K → Half
4:18 | 6:18/mi
25K· 15.53 mi
1:38:23
Rank: #1672 (+30)
Half → 25K
15:46 | 6:30/mi
30K· 18.64 mi
1:59:33
Rank: #1691 (-19)
25K → 30K
21:10 | 6:49/mi
20M
2:09:28
Rank: #1771 (-80)
30K → 20M
9:55 | 7:18/mi
21M
2:17:10
Rank: #1804 (-33)
20M → 21M
7:42 | 7:42/mi
35K· 21.75 mi
2:22:56
Rank: #1930 (-126)
21M → 35K
5:46 | 7:42/mi
23M
2:33:39
Rank: #2236 (-306)
35K → 23M
10:43 | 8:34/mi
24M
2:41:58
Rank: #2457 (-221)
23M → 24M
8:19 | 8:19/mi
40K· 24.85 mi
2:49:49
Rank: #2815 (-358)
24M → 40K
7:51 | 9:11/mi
25.2M
2:53:00
Rank: #2890 (-75)
40K → 25.2M
3:11 | 9:14/mi
Finish· 26.22 mi
3:02:02
Rank: #3191 (-301)
25.2M → Finish
9:02 | 8:52/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:37
Pace6:18 /mi
2nd Half
Distance13.11 mi
Time1:39:25
Pace7:35 /mi
📊Positive Split: 20.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:0219:386:1919:38
6:19
-
10K
6.21 mi10:40:3239:086:1819:30
6:17
-0:02
15K
9.32 mi11:00:0058:366:1719:28
6:16
-0:01
20K
12.43 mi11:19:431:18:196:1819:43
6:21
+0:05
Half
13.11 mi11:24:011:22:376:184:18
6:18
-0:03
25K
15.53 mi11:39:471:38:236:2015:46
6:30
+0:12
30K
18.64 mi12:00:571:59:336:2521:10
6:49
+0:19
20M
20.00 mi12:10:522:09:286:289:55
7:18
+0:29
21M
21.00 mi12:18:342:17:106:327:42
7:42
+0:24
35K
21.75 mi12:24:202:22:566:345:46
7:42
0:00
23M
23.00 mi12:35:032:33:396:4110:43
8:34
+0:52
24M
24.00 mi12:43:222:41:586:458:19
8:19
-0:15
40K
24.85 mi12:51:132:49:496:507:51
9:11
+0:52
25.2M
25.20 mi12:54:242:53:006:523:11
9:14
+0:03
Finish
26.22 mi13:03:263:02:026:579:02
8:52
-0:22

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

6:16 /mi

Average Pace

6:57 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:23

54% of race

Time at Steady Pace

44:33

24% of race

Time at Slower Pace

39:06

21% of race

Average Pace: 6:57 /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 mi10:21:0219:386:1919:38
6:19
#2204
10K
6.21 mi10:40:3239:086:1819:30
6:17
#1974
15K
9.32 mi11:00:0058:366:1719:28
6:16
#1819
20K
12.43 mi11:19:431:18:196:1819:43
6:21
#1712
Half
13.11 mi11:24:011:22:376:184:18
6:18
#1702
25K
15.53 mi11:39:471:38:236:2015:46
6:30
#1672
30K
18.64 mi12:00:571:59:336:2521:10
6:49
#1691
20M
20.00 mi12:10:522:09:286:289:55
7:18
#1771
21M
21.00 mi12:18:342:17:106:327:42
7:42
#1804
35K
21.75 mi12:24:202:22:566:345:46
7:42
#1930
23M
23.00 mi12:35:032:33:396:4110:43
8:34
#2236
24M
24.00 mi12:43:222:41:586:458:19
8:19
#2457
40K
24.85 mi12:51:132:49:496:507:51
9:11
#2815
25.2M
25.20 mi12:54:242:53:006:523:11
9:14
#2890
Finish
26.22 mi13:03:263:02:026:579:02
8:52
#3191
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2204213021301615(Top 6%)1563(Top 11%)1563(Top 32%)
10K6.21 mi3.10 mi1974+2301909+2211909+2211798(Top 7%)1739(Top 12%)1739(Top 36%)
15K9.32 mi3.11 mi1819+1551761+1481761+1481615(Top 6%)1563(Top 11%)1563(Top 32%)
20K12.43 mi3.11 mi1712+1071659+1021659+1021529(Top 6%)1481(Top 10%)1481(Top 31%)
Half13.11 mi0.68 mi1702+101649+101649+101714(Top 7%)1659(Top 11%)1659(Top 34%)
25K15.53 mi2.42 mi1672+301619+301619+301800(Top 7%)1732(Top 12%)1732(Top 36%)
30K18.64 mi3.11 mi1691-191637-181637-181986(Top 8%)1882(Top 13%)1882(Top 39%)
20M20.00 mi1.36 mi1771-801711-741711-743528(Top 14%)3187(Top 22%)3187(Top 66%)
21M21.00 mi1.00 mi1804-331739-281739-283138(Top 12%)2810(Top 19%)2810(Top 58%)
35K21.75 mi0.75 mi1930-1261855-1161855-1166084(Top 24%)4712(Top 32%)4712(Top 97%)
23M23.00 mi1.25 mi2236-3062133-2782133-2788761(Top 34%)5979(Top 41%)5979(Top 123%)
24M24.00 mi1.00 mi2457-2212326-1932326-1938335(Top 33%)5658(Top 39%)5658(Top 117%)
40K24.85 mi0.85 mi2815-3582644-3182644-31811647(Top 46%)7238(Top 50%)7238(Top 149%)
25.2M25.20 mi0.35 mi2890-752699-552699-557519(Top 29%)5043(Top 35%)5043(Top 104%)
Finish26.22 mi1.02 mi3191-3012949-2502949-25013482(Top 53%)8222(Top 56%)8222(Top 170%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1615

Males

1563

M18-39

1563

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1798

Males

1739

M18-39

1739

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1615

Males

1563

M18-39

1563

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1529

Males

1481

M18-39

1481

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1714

Males

1659

M18-39

1659

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1800

Males

1732

M18-39

1732

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

1986

Males

1882

M18-39

1882

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3528

Males

3187

M18-39

3187

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3138

Males

2810

M18-39

2810

21M→35K

21.0 - 21.8 mi

Top 24%
×7stories
+17ft-86ft

Overall

6084

Males

4712

M18-39

4712

35K→23M

21.8 - 23.0 mi

Top 34%
×5stories
+23ft-63ft

Overall

8761

Males

5979

M18-39

5979

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

8335

Males

5658

M18-39

5658

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

11647

Males

7238

M18-39

7238

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

7519

Males

5043

M18-39

5043

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2stories
+22ft-21ft

Overall

13482

Males

8222

M18-39

8222

Passing Analysis

Category:
Athletes Passed
868
Passed By
1855
Net Change
-987
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2204
5K → 10K25525+230#2204#1974
10K → 15K17015+155#1974#1819
15K → 20K12518+107#1819#1712
20K → Half177+10#1712#1702
Half → 25K8454+30#1702#1672
25K → 30K84103-19#1672#1691
30K → 20M23103-80#1691#1771
20M → 21M4174-33#1771#1804
21M → 35K6132-126#1804#1930
35K → 23M9315-306#1930#2236
23M → 24M15236-221#2236#2457
24M → 40K8366-358#2457#2815
40K → 25.2M1388-75#2815#2890
25.2M → Finish18319-301#2890#3191
TOTALS8681855-987
📊

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