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BOSTON MARATHON 2023

Justin Lohmeier

Bib: 25731•M

MS

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
9:45/mi
30:17
↑ 97↓ 3451.5%
10K· 6.21 mi
9:38/mi
1:00:14
↑ 79↓ 1380.4%
15K· 9.32 mi
10:23/mi
1:32:30
↑ 67↓ 78
20K· 12.43 mi
10:57/mi
2:06:32
↑ 106↓ 860.1%
Half· 13.11 mi
10:49/mi
2:13:55
↑ 19↓ 370.5%
25K· 15.53 mi
11:39/mi
2:42:11
↑ 66↓ 880.2%
30K· 18.64 mi
11:50/mi
3:18:58
↑ 181↓ 1480.2%
20M
13:09/mi
3:36:50
↑ 64↓ 500.2%
21M
13:35/mi
3:50:25
↑ 106↓ 241.6%
35K· 21.75 mi
12:19/mi
3:59:38
↑ 17↓ 861.7%
23M
12:54/mi
4:15:47
↑ 23↓ 630.6%
24M
12:19/mi
4:28:06
↓ 821.3%
40K· 24.85 mi
12:46/mi
4:39:01
↓ 200.3%
25.2M
13:41/mi
4:43:44
↑ 13↓ 160.2%
Finish· 26.22 mi
11:58/mi
4:55:56
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:13:55
Pace10:13 /mi
2nd Half
Distance13.11 mi
Time2:42:01
Pace12:22 /mi
📊Positive Split: 21.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:2430:179:4530:17
9:45
-
10K
6.21 mi12:16:211:00:149:4229:57
9:38
-0:07
15K
9.32 mi12:48:371:32:309:5532:16
10:23
+0:45
20K
12.43 mi13:22:392:06:3210:1134:02
10:57
+0:34
Half
13.11 mi13:30:022:13:5510:137:23
10:49
-0:08
25K
15.53 mi13:58:182:42:1110:2628:16
11:39
+0:50
30K
18.64 mi14:35:053:18:5810:4036:47
11:50
+0:11
20M
20.00 mi14:52:573:36:5010:5017:52
13:09
+1:19
21M
21.00 mi15:06:323:50:2510:5813:35
13:35
+0:26
35K
21.75 mi15:15:453:59:3811:019:13
12:19
-1:16
23M
23.00 mi15:31:544:15:4711:0716:09
12:54
+0:35
24M
24.00 mi15:44:134:28:0611:1012:19
12:19
-0:35
40K
24.85 mi15:55:084:39:0111:1410:55
12:46
+0:27
25.2M
25.20 mi15:59:514:43:4411:164:43
13:41
+0:55
Finish
26.22 mi16:12:034:55:5611:1812:12
11:58
-1:43

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

9:38 /mi

Average Pace

11:18 /mi

Slowest Pace

13:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:55

45% of race

Time at Steady Pace

1:38:47

33% of race

Time at Slower Pace

1:03:14

21% of race

Average Pace: 11:17 /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 mi11:46:2430:179:4530:17
9:45
#22787
10K
6.21 mi12:16:211:00:149:4229:57
9:38
#22884
15K
9.32 mi12:48:371:32:309:5532:16
10:23
#23434
20K
12.43 mi13:22:392:06:3210:1134:02
10:57
#23786
Half
13.11 mi13:30:022:13:5510:137:23
10:49
#23828
25K
15.53 mi13:58:182:42:1110:2628:16
11:39
#24060
30K
18.64 mi14:35:053:18:5810:4036:47
11:50
#24118
20M
20.00 mi14:52:573:36:5010:5017:52
13:09
#24269
21M
21.00 mi15:06:323:50:2510:5813:35
13:35
#24308
35K
21.75 mi15:15:453:59:3811:019:13
12:19
#24346
23M
23.00 mi15:31:544:15:4711:0716:09
12:54
#24410
24M
24.00 mi15:44:134:28:0611:1012:19
12:19
#24460
40K
24.85 mi15:55:084:39:0111:1410:55
12:46
#24493
25.2M
25.20 mi15:59:514:43:4411:164:43
13:41
#24502
Finish
26.22 mi16:12:034:55:5611:1812:12
11:58
#24567
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi22787134941349424252(Top 91%)14200(Top 94%)14200(Top 631%)
10K6.21 mi3.10 mi22884-9713569-7513569-7522908(Top 86%)13597(Top 90%)13597(Top 604%)
15K9.32 mi3.11 mi23434-55013840-27113840-27124252(Top 91%)14200(Top 94%)14200(Top 631%)
20K12.43 mi3.11 mi23786-35213994-15413994-15424560(Top 92%)14304(Top 94%)14304(Top 635%)
Half13.11 mi0.68 mi23828-4214011-1714011-1724692(Top 93%)14354(Top 95%)14354(Top 637%)
25K15.53 mi2.42 mi24060-23214101-9014101-9024849(Top 93%)14398(Top 95%)14398(Top 639%)
30K18.64 mi3.11 mi24118-5814113-1214113-1224313(Top 91%)14118(Top 93%)14118(Top 627%)
20M20.00 mi1.36 mi24269-15114158-4514158-4525282(Top 95%)14513(Top 96%)14513(Top 644%)
21M21.00 mi1.00 mi24308-3914171-1314171-1324663(Top 93%)14210(Top 94%)14210(Top 631%)
35K21.75 mi0.75 mi24346-3814179-814179-824988(Top 94%)14315(Top 94%)14315(Top 636%)
23M23.00 mi1.25 mi24410-6414203-2414203-2424983(Top 94%)14333(Top 94%)14333(Top 636%)
24M24.00 mi1.00 mi24460-5014216-1314216-1324867(Top 93%)14230(Top 94%)14230(Top 632%)
40K24.85 mi0.85 mi24493-3314226-1014226-1024742(Top 93%)14177(Top 93%)14177(Top 630%)
25.2M25.20 mi0.35 mi24502-9142261422624692(Top 93%)14134(Top 93%)14134(Top 628%)
Finish26.22 mi1.02 mi24567-6514245-1914245-1925206(Top 95%)14408(Top 95%)14408(Top 640%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21story building
+97ft-345ft

Overall

24252

Males

14200

M45-49

14200

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

22908

Males

13597

M45-49

13597

10K→15K

6.2 - 9.3 mi

Top 91%
×3story building
+67ft-78ft

Overall

24252

Males

14200

M45-49

14200

15K→20K

9.3 - 12.4 mi

Top 92%
×5story building
+106ft-86ft

Overall

24560

Males

14304

M45-49

14304

20K→Half

12.4 - 13.1 mi

Top 93%
×2story building
+19ft-37ft

Overall

24692

Males

14354

M45-49

14354

Half→25K

13.1 - 15.5 mi

Top 93%
×4story building
+66ft-88ft

Overall

24849

Males

14398

M45-49

14398

25K→30K

15.5 - 18.6 mi

Top 91%
×9story building
+181ft-148ft

Overall

24313

Males

14118

M45-49

14118

30K→20M

18.6 - 20.0 mi

Top 95%
×5story building
+64ft-50ft

Overall

25282

Males

14513

M45-49

14513

20M→21M

20.0 - 21.0 mi

Top 93%
×8story building
+106ft-24ft

Overall

24663

Males

14210

M45-49

14210

21M→35K

21.0 - 21.8 mi

Top 94%
×7story building
+17ft-86ft

Overall

24988

Males

14315

M45-49

14315

35K→23M

21.8 - 23.0 mi

Top 94%
×5story building
+23ft-63ft

Overall

24983

Males

14333

M45-49

14333

23M→24M

23.0 - 24.0 mi

Top 93%
×6story building
+12ft-82ft

Overall

24867

Males

14230

M45-49

14230

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

24742

Males

14177

M45-49

14177

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

24692

Males

14134

M45-49

14134

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2story building
+22ft-21ft

Overall

25206

Males

14408

M45-49

14408

Passing Analysis

Category:
Athletes Passed
497
Passed By
2277
Net Change
-1780
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22787
5K → 10K200297-97#22787#22884
10K → 15K29579-550#22884#23434
15K → 20K35387-352#23434#23786
20K → Half1153-42#23786#23828
Half → 25K34266-232#23828#24060
25K → 30K80138-58#24060#24118
30K → 20M14165-151#24118#24269
20M → 21M2463-39#24269#24308
21M → 35K1553-38#24308#24346
35K → 23M1579-64#24346#24410
23M → 24M1767-50#24410#24460
24M → 40K1043-33#24460#24493
40K → 25.2M615-9#24493#24502
25.2M → Finish772-65#24502#24567
TOTALS4972277-1780
📊

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