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BOSTON MARATHON 2023

James Lloyd

Bib: 4029•M

HI

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0:00
/ mi
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Overall
#0 / 26622
Top 31%
Gender (Male)
#0 / 15176
Top 45%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:16
Rank: #2412
Start → 5K
20:16 | 6:31/mi
10K· 6.21 mi
40:42
Rank: #2809 (-397)
5K → 10K
20:26 | 6:35/mi
15K· 9.32 mi
1:01:37
Rank: #3280 (-471)
10K → 15K
20:55 | 6:44/mi
20K· 12.43 mi
1:23:20
Rank: #3925 (-645)
15K → 20K
21:43 | 6:59/mi
Half· 13.11 mi
1:28:10
Rank: #4145 (-220)
20K → Half
4:50 | 7:05/mi
25K· 15.53 mi
1:46:14
Rank: #5085 (-940)
Half → 25K
18:04 | 7:27/mi
30K· 18.64 mi
2:11:32
Rank: #6172 (-1087)
25K → 30K
25:18 | 8:09/mi
20M
2:23:12
Rank: #6575 (-403)
30K → 20M
11:40 | 8:35/mi
21M
2:32:01
Rank: #6818 (-243)
20M → 21M
8:49 | 8:49/mi
35K· 21.75 mi
2:37:48
Rank: #6877 (-59)
21M → 35K
5:47 | 7:44/mi
23M
2:49:06
Rank: #7357 (-480)
35K → 23M
11:18 | 9:02/mi
24M
2:57:24
Rank: #7570 (-213)
23M → 24M
8:18 | 8:18/mi
40K· 24.85 mi
3:04:49
Rank: #7827 (-257)
24M → 40K
7:25 | 8:40/mi
25.2M
3:08:10
Rank: #7952 (-125)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
3:16:40
Rank: #8200 (-248)
25.2M → Finish
8:30 | 8:20/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:10
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:48:30
Pace8:17 /mi
📊Positive Split: 23.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:1820:166:3120:16
6:31
-
10K
6.21 mi10:42:4440:426:3320:26
6:35
+0:04
15K
9.32 mi11:03:391:01:376:3720:55
6:44
+0:09
20K
12.43 mi11:25:221:23:206:4221:43
6:59
+0:15
Half
13.11 mi11:30:121:28:106:444:50
7:05
+0:06
25K
15.53 mi11:48:161:46:146:5018:04
7:27
+0:22
30K
18.64 mi12:13:342:11:327:0325:18
8:09
+0:42
20M
20.00 mi12:25:142:23:127:1011:40
8:35
+0:26
21M
21.00 mi12:34:032:32:017:148:49
8:49
+0:14
35K
21.75 mi12:39:502:37:487:155:47
7:44
-1:05
23M
23.00 mi12:51:082:49:067:2111:18
9:02
+1:18
24M
24.00 mi12:59:262:57:247:248:18
8:18
-0:44
40K
24.85 mi13:06:513:04:497:267:25
8:40
+0:22
25.2M
25.20 mi13:10:123:08:107:283:21
9:43
+1:03
Finish
26.22 mi13:18:423:16:407:308:30
8:20
-1:23

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

6:31 /mi

Average Pace

7:30 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:14

54% of race

Time at Steady Pace

59:33

30% of race

Time at Slower Pace

30:53

16% of race

Average Pace: 7:30 /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 mi10:22:1820:166:3120:16
6:31
#2412
10K
6.21 mi10:42:4440:426:3320:26
6:35
#2809
15K
9.32 mi11:03:391:01:376:3720:55
6:44
#3280
20K
12.43 mi11:25:221:23:206:4221:43
6:59
#3925
Half
13.11 mi11:30:121:28:106:444:50
7:05
#4145
25K
15.53 mi11:48:161:46:146:5018:04
7:27
#5085
30K
18.64 mi12:13:342:11:327:0325:18
8:09
#6172
20M
20.00 mi12:25:142:23:127:1011:40
8:35
#6575
21M
21.00 mi12:34:032:32:017:148:49
8:49
#6818
35K
21.75 mi12:39:502:37:487:155:47
7:44
#6877
23M
23.00 mi12:51:082:49:067:2111:18
9:02
#7357
24M
24.00 mi12:59:262:57:247:248:18
8:18
#7570
40K
24.85 mi13:06:513:04:497:267:25
8:40
#7827
25.2M
25.20 mi13:10:123:08:107:283:21
9:43
#7952
Finish
26.22 mi13:18:423:16:407:308:30
8:20
#8200
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2412230023004459(Top 17%)4168(Top 27%)4168(Top 79%)
10K6.21 mi3.10 mi2809-3972679-3792679-3793331(Top 13%)3170(Top 21%)3170(Top 60%)
15K9.32 mi3.11 mi3280-4713118-4393118-4394459(Top 17%)4168(Top 27%)4168(Top 79%)
20K12.43 mi3.11 mi3925-6453695-5773695-5775928(Top 22%)5419(Top 36%)5419(Top 103%)
Half13.11 mi0.68 mi4145-2203890-1953890-1957069(Top 27%)6286(Top 41%)6286(Top 119%)
25K15.53 mi2.42 mi5085-9404720-8304720-8308402(Top 32%)7063(Top 47%)7063(Top 134%)
30K18.64 mi3.11 mi6172-10875595-8755595-87511926(Top 45%)8764(Top 58%)8764(Top 166%)
20M20.00 mi1.36 mi6575-4035884-2895884-28914133(Top 53%)9615(Top 63%)9615(Top 182%)
21M21.00 mi1.00 mi6818-2436060-1766060-17612328(Top 46%)8720(Top 57%)8720(Top 165%)
35K21.75 mi0.75 mi6877-596091-316091-3110107(Top 38%)7667(Top 51%)7667(Top 145%)
23M23.00 mi1.25 mi7357-4806386-2956386-29516158(Top 61%)10305(Top 68%)10305(Top 195%)
24M24.00 mi1.00 mi7570-2136514-1286514-12813219(Top 50%)8953(Top 59%)8953(Top 169%)
40K24.85 mi0.85 mi7827-2576658-1446658-14414332(Top 54%)9374(Top 62%)9374(Top 177%)
25.2M25.20 mi0.35 mi7952-1256729-716729-7116082(Top 60%)10126(Top 67%)10126(Top 192%)
Finish26.22 mi1.02 mi8200-2486857-1286857-12814306(Top 54%)9378(Top 62%)9378(Top 177%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4459

Males

4168

M18-39

4168

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3331

Males

3170

M18-39

3170

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4459

Males

4168

M18-39

4168

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

5928

Males

5419

M18-39

5419

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

7069

Males

6286

M18-39

6286

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

8402

Males

7063

M18-39

7063

25K→30K

15.5 - 18.6 mi

Top 45%
×9stories
+181ft-148ft

Overall

11926

Males

8764

M18-39

8764

30K→20M

18.6 - 20.0 mi

Top 53%
×5stories
+64ft-50ft

Overall

14133

Males

9615

M18-39

9615

20M→21M

20.0 - 21.0 mi

Top 46%
×8stories
+106ft-24ft

Overall

12328

Males

8720

M18-39

8720

21M→35K

21.0 - 21.8 mi

Top 38%
×7stories
+17ft-86ft

Overall

10107

Males

7667

M18-39

7667

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

16158

Males

10305

M18-39

10305

23M→24M

23.0 - 24.0 mi

Top 50%
×6stories
+12ft-82ft

Overall

13219

Males

8953

M18-39

8953

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14332

Males

9374

M18-39

9374

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

16082

Males

10126

M18-39

10126

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

14306

Males

9378

M18-39

9378

Passing Analysis

Category:
Athletes Passed
187
Passed By
5975
Net Change
-5788
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2412
5K → 10K32429-397#2412#2809
10K → 15K7478-471#2809#3280
15K → 20K9654-645#3280#3925
20K → Half0220-220#3925#4145
Half → 25K12952-940#4145#5085
25K → 30K101097-1087#5085#6172
30K → 20M7410-403#6172#6575
20M → 21M15258-243#6575#6818
21M → 35K2483-59#6818#6877
35K → 23M17497-480#6877#7357
23M → 24M17230-213#7357#7570
24M → 40K16273-257#7570#7827
40K → 25.2M5130-125#7827#7952
25.2M → Finish16264-248#7952#8200
TOTALS1875975-5788
📊

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