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BOSTON MARATHON 2024

Charles Lozner

Bib: 8160•M

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 26%
Gender (Male)
#0 / 14578
Top 37%
Masters (Masters Men)
#0 / 9729
Top 26%
Division (M45-49)
#0 / 2218
Top 36%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:03/mi
21:53
↑ 97↓ 3451.5%
10K· 6.21 mi
7:01/mi
43:41
↑ 79↓ 1380.4%
15K· 9.32 mi
7:10/mi
1:05:56
↑ 67↓ 78
20K· 12.43 mi
7:15/mi
1:28:29
↑ 106↓ 860.1%
Half· 13.11 mi
7:26/mi
1:33:33
↑ 19↓ 370.5%
25K· 15.53 mi
7:37/mi
1:52:02
↑ 66↓ 880.2%
30K· 18.64 mi
8:01/mi
2:16:55
↑ 181↓ 1480.2%
20M
8:11/mi
2:28:02
↑ 64↓ 500.2%
21M
8:53/mi
2:36:55
↑ 106↓ 241.6%
35K· 21.75 mi
8:17/mi
2:43:07
↑ 17↓ 861.7%
23M
8:05/mi
2:53:14
↑ 23↓ 630.6%
24M
8:02/mi
3:01:16
↓ 821.3%
40K· 24.85 mi
8:04/mi
3:08:10
↓ 200.3%
25.2M
8:27/mi
3:11:05
↑ 13↓ 160.2%
Finish· 26.22 mi
7:25/mi
3:18:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:33
Pace7:08 /mi
2nd Half
Distance13.11 mi
Time1:45:05
Pace8:01 /mi
📊Positive Split: 12.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:1921:537:0321:53
7:03
-
10K
6.21 mi11:09:0743:417:0221:48
7:01
-0:02
15K
9.32 mi11:31:221:05:567:0422:15
7:10
+0:09
20K
12.43 mi11:53:551:28:297:0722:33
7:15
+0:05
Half
13.11 mi11:58:591:33:337:085:04
7:26
+0:11
25K
15.53 mi12:17:281:52:027:1318:29
7:37
+0:11
30K
18.64 mi12:42:212:16:557:2124:53
8:01
+0:24
20M
20.00 mi12:53:282:28:027:2411:07
8:11
+0:10
21M
21.00 mi13:02:212:36:557:288:53
8:53
+0:42
35K
21.75 mi13:08:332:43:077:306:12
8:17
-0:36
23M
23.00 mi13:18:402:53:147:3210:07
8:05
-0:12
24M
24.00 mi13:26:423:01:167:338:02
8:02
-0:03
40K
24.85 mi13:33:363:08:107:346:54
8:04
+0:02
25.2M
25.20 mi13:36:313:11:057:352:55
8:27
+0:23
Finish
26.22 mi13:44:043:18:387:357:33
7:25
-1:02

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

7:01 /mi

Average Pace

7:35 /mi

Slowest Pace

8:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:35

60% of race

Time at Steady Pace

1:07:15

34% of race

Time at Slower Pace

11:48

6% of race

Average Pace: 7:35 /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 mi10:47:1921:537:0321:53
7:03
#7298
10K
6.21 mi11:09:0743:417:0221:48
7:01
#7024
15K
9.32 mi11:31:221:05:567:0422:15
7:10
#7059
20K
12.43 mi11:53:551:28:297:0722:33
7:15
#6911
Half
13.11 mi11:58:591:33:337:085:04
7:26
#6973
25K
15.53 mi12:17:281:52:027:1318:29
7:37
#7020
30K
18.64 mi12:42:212:16:557:2124:53
8:01
#7108
20M
20.00 mi12:53:282:28:027:2411:07
8:11
#7088
21M
21.00 mi13:02:212:36:557:288:53
8:53
#7032
35K
21.75 mi13:08:332:43:077:306:12
8:17
#7068
23M
23.00 mi13:18:402:53:147:3210:07
8:05
#6925
24M
24.00 mi13:26:423:01:167:338:02
8:02
#6840
40K
24.85 mi13:33:363:08:107:346:54
8:04
#6736
25.2M
25.20 mi13:36:313:11:057:352:55
8:27
#6657
Finish
26.22 mi13:44:043:18:387:357:33
7:25
#6550
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi7298636863687204(Top 28%)6208(Top 43%)6208(Top 280%)
10K6.21 mi3.10 mi7024+2746162+2066162+2066770(Top 26%)5957(Top 41%)5957(Top 269%)
15K9.32 mi3.11 mi7059-356157+56157+57204(Top 28%)6208(Top 43%)6208(Top 280%)
20K12.43 mi3.11 mi6911+1486029+1286029+1286713(Top 26%)5794(Top 40%)5794(Top 261%)
Half13.11 mi0.68 mi6973-626069-406069-408501(Top 33%)6890(Top 47%)6890(Top 311%)
25K15.53 mi2.42 mi7020-47606960697765(Top 30%)6280(Top 43%)6280(Top 283%)
30K18.64 mi3.11 mi7108-886070-16070-17905(Top 31%)6154(Top 42%)6154(Top 277%)
20M20.00 mi1.36 mi7088+206020+506020+507707(Top 30%)5832(Top 40%)5832(Top 263%)
21M21.00 mi1.00 mi7032+565921+995921+997977(Top 31%)5791(Top 40%)5791(Top 261%)
35K21.75 mi0.75 mi7068-365917+45917+49435(Top 37%)6466(Top 44%)6466(Top 292%)
23M23.00 mi1.25 mi6925+1435776+1415776+1416146(Top 24%)4616(Top 32%)4616(Top 208%)
24M24.00 mi1.00 mi6840+855681+955681+956794(Top 27%)4870(Top 33%)4870(Top 220%)
40K24.85 mi0.85 mi6736+1045570+1115570+1116137(Top 24%)4403(Top 30%)4403(Top 199%)
25.2M25.20 mi0.35 mi6657+795501+695501+694277(Top 17%)3341(Top 23%)3341(Top 151%)
Finish26.22 mi1.02 mi6550+1075407+945407+945101(Top 20%)3851(Top 26%)3851(Top 174%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21story building
+97ft-345ft

Overall

7204

Males

6208

M45-49

6208

5K→10K

3.1 - 6.2 mi

Top 26%
×5story building
+79ft-138ft

Overall

6770

Males

5957

M45-49

5957

10K→15K

6.2 - 9.3 mi

Top 28%
×3story building
+67ft-78ft

Overall

7204

Males

6208

M45-49

6208

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

6713

Males

5794

M45-49

5794

20K→Half

12.4 - 13.1 mi

Top 33%
×2story building
+19ft-37ft

Overall

8501

Males

6890

M45-49

6890

Half→25K

13.1 - 15.5 mi

Top 30%
×4story building
+66ft-88ft

Overall

7765

Males

6280

M45-49

6280

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

7905

Males

6154

M45-49

6154

30K→20M

18.6 - 20.0 mi

Top 30%
×5story building
+64ft-50ft

Overall

7707

Males

5832

M45-49

5832

20M→21M

20.0 - 21.0 mi

Top 31%
×8story building
+106ft-24ft

Overall

7977

Males

5791

M45-49

5791

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

9435

Males

6466

M45-49

6466

35K→23M

21.8 - 23.0 mi

Top 24%
×5story building
+23ft-63ft

Overall

6146

Males

4616

M45-49

4616

23M→24M

23.0 - 24.0 mi

Top 27%
×6story building
+12ft-82ft

Overall

6794

Males

4870

M45-49

4870

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6137

Males

4403

M45-49

4403

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4277

Males

3341

M45-49

3341

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2story building
+22ft-21ft

Overall

5101

Males

3851

M45-49

3851

Passing Analysis

Category:
Athletes Passed
2109
Passed By
1361
Net Change
+748
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7298
5K → 10K34874+274#7298#7024
10K → 15K150185-35#7024#7059
15K → 20K23284+148#7059#6911
20K → Half1375-62#6911#6973
Half → 25K166213-47#6973#7020
25K → 30K175263-88#7020#7108
30K → 20M121101+20#7108#7088
20M → 21M157101+56#7088#7032
21M → 35K66102-36#7032#7068
35K → 23M19047+143#7068#6925
23M → 24M14055+85#6925#6840
24M → 40K14339+104#6840#6736
40K → 25.2M856+79#6736#6657
25.2M → Finish12316+107#6657#6550
TOTALS21091361+748
📊

Passing Visuals

Category:
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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