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BOSTON MARATHON 2024

David Janczewski

Bib: 7098•M

TN

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 12%
Gender (Male)
#0 / 14578
Top 20%
Masters (Masters Men)
#0 / 9729
Top 9%
Division (M40-44)
#0 / 2009
Top 25%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:55
Rank: #5077
Start → 5K
20:55 | 6:44/mi
10K· 6.21 mi
41:55
Rank: #4939 (+138)
5K → 10K
21:00 | 6:46/mi
15K· 9.32 mi
1:03:00
Rank: #4815 (+124)
10K → 15K
21:05 | 6:47/mi
20K· 12.43 mi
1:24:07
Rank: #4498 (+317)
15K → 20K
21:07 | 6:48/mi
Half· 13.11 mi
1:28:47
Rank: #4506 (-8)
20K → Half
4:40 | 6:50/mi
25K· 15.53 mi
1:45:29
Rank: #4288 (+218)
Half → 25K
16:42 | 6:53/mi
30K· 18.64 mi
2:07:10
Rank: #3864 (+424)
25K → 30K
21:41 | 6:59/mi
20M
2:16:41
Rank: #3644 (+220)
30K → 20M
9:31 | 7:00/mi
21M
2:24:14
Rank: #3520 (+124)
20M → 21M
7:33 | 7:33/mi
35K· 21.75 mi
2:29:21
Rank: #3440 (+80)
21M → 35K
5:07 | 6:50/mi
23M
2:38:08
Rank: #3268 (+172)
35K → 23M
8:47 | 7:01/mi
24M
2:44:54
Rank: #3150 (+118)
23M → 24M
6:46 | 6:46/mi
40K· 24.85 mi
2:51:03
Rank: #3084 (+66)
24M → 40K
6:09 | 7:12/mi
25.2M
2:53:55
Rank: #3078 (+6)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:01:30
Rank: #3103 (-25)
25.2M → Finish
7:35 | 7:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:47
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:32:43
Pace7:04 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:29:2520:556:4420:55
6:44
-
10K
6.21 mi10:50:2541:556:4521:00
6:46
+0:02
15K
9.32 mi11:11:301:03:006:4621:05
6:47
+0:01
20K
12.43 mi11:32:371:24:076:4621:07
6:48
+0:01
Half
13.11 mi11:37:171:28:476:464:40
6:50
+0:02
25K
15.53 mi11:53:591:45:296:4716:42
6:53
+0:03
30K
18.64 mi12:15:402:07:106:4921:41
6:59
+0:06
20M
20.00 mi12:25:112:16:416:509:31
7:00
+0:01
21M
21.00 mi12:32:442:24:146:527:33
7:33
+0:33
35K
21.75 mi12:37:512:29:216:525:07
6:50
-0:43
23M
23.00 mi12:46:382:38:086:538:47
7:01
+0:11
24M
24.00 mi12:53:242:44:546:526:46
6:46
-0:15
40K
24.85 mi12:59:332:51:036:536:09
7:12
+0:26
25.2M
25.20 mi13:02:252:53:556:542:52
8:19
+1:07
Finish
26.22 mi13:10:003:01:306:567:35
7:26
-0:53

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

6:44 /mi

Average Pace

6:56 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:37:21

87% of race

Time at Slower Pace

24:09

13% of race

Average Pace: 6:55 /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 mi10:29:2520:556:4420:55
6:44
#5077
10K
6.21 mi10:50:2541:556:4521:00
6:46
#4939
15K
9.32 mi11:11:301:03:006:4621:05
6:47
#4815
20K
12.43 mi11:32:371:24:076:4621:07
6:48
#4498
Half
13.11 mi11:37:171:28:476:464:40
6:50
#4506
25K
15.53 mi11:53:591:45:296:4716:42
6:53
#4288
30K
18.64 mi12:15:402:07:106:4921:41
6:59
#3864
20M
20.00 mi12:25:112:16:416:509:31
7:00
#3644
21M
21.00 mi12:32:442:24:146:527:33
7:33
#3520
35K
21.75 mi12:37:512:29:216:525:07
6:50
#3440
23M
23.00 mi12:46:382:38:086:538:47
7:01
#3268
24M
24.00 mi12:53:242:44:546:526:46
6:46
#3150
40K
24.85 mi12:59:332:51:036:536:09
7:12
#3084
25.2M
25.20 mi13:02:252:53:556:542:52
8:19
#3078
Finish
26.22 mi13:10:003:01:306:567:35
7:26
#3103
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5077470047004593(Top 18%)4273(Top 29%)4273(Top 213%)
10K6.21 mi3.10 mi4939+1384583+1174583+1174812(Top 19%)4466(Top 31%)4466(Top 222%)
15K9.32 mi3.11 mi4815+1244472+1114472+1114593(Top 18%)4273(Top 29%)4273(Top 213%)
20K12.43 mi3.11 mi4498+3174187+2854187+2853831(Top 15%)3595(Top 25%)3595(Top 179%)
Half13.11 mi0.68 mi4506-84188-14188-14727(Top 19%)4338(Top 30%)4338(Top 216%)
25K15.53 mi2.42 mi4288+2184005+1834005+1833699(Top 14%)3440(Top 24%)3440(Top 171%)
30K18.64 mi3.11 mi3864+4243623+3823623+3822766(Top 11%)2587(Top 18%)2587(Top 129%)
20M20.00 mi1.36 mi3644+2203414+2093414+2092381(Top 9%)2222(Top 15%)2222(Top 111%)
21M21.00 mi1.00 mi3520+1243292+1223292+1222657(Top 10%)2414(Top 17%)2414(Top 120%)
35K21.75 mi0.75 mi3440+803213+793213+792437(Top 10%)2225(Top 15%)2225(Top 111%)
23M23.00 mi1.25 mi3268+1723050+1633050+1632004(Top 8%)1834(Top 13%)1834(Top 91%)
24M24.00 mi1.00 mi3150+1182943+1072943+1071596(Top 6%)1472(Top 10%)1472(Top 73%)
40K24.85 mi0.85 mi3084+662876+672876+672464(Top 10%)2160(Top 15%)2160(Top 108%)
25.2M25.20 mi0.35 mi3078+62868+82868+83712(Top 15%)2971(Top 20%)2971(Top 148%)
Finish26.22 mi1.02 mi3103-252878-102878-105253(Top 21%)3937(Top 27%)3937(Top 196%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

4593

Males

4273

M40-44

4273

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

4812

Males

4466

M40-44

4466

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

4593

Males

4273

M40-44

4273

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

3831

Males

3595

M40-44

3595

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

4727

Males

4338

M40-44

4338

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3699

Males

3440

M40-44

3440

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

2766

Males

2587

M40-44

2587

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2381

Males

2222

M40-44

2222

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2657

Males

2414

M40-44

2414

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2437

Males

2225

M40-44

2225

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2004

Males

1834

M40-44

1834

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1596

Males

1472

M40-44

1472

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2464

Males

2160

M40-44

2160

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

3712

Males

2971

M40-44

2971

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2stories
+22ft-21ft

Overall

5253

Males

3937

M40-44

3937

Passing Analysis

Category:
Athletes Passed
2449
Passed By
475
Net Change
+1974
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5077
5K → 10K251113+138#5077#4939
10K → 15K20985+124#4939#4815
15K → 20K34326+317#4815#4498
20K → Half2533-8#4498#4506
Half → 25K24527+218#4506#4288
25K → 30K45127+424#4288#3864
30K → 20M23111+220#3864#3644
20M → 21M15127+124#3644#3520
21M → 35K833+80#3520#3440
35K → 23M1808+172#3440#3268
23M → 24M1246+118#3268#3150
24M → 40K8115+66#3150#3084
40K → 25.2M3024+6#3084#3078
25.2M → Finish4570-25#3078#3103
TOTALS2449475+1974
📊

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