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BOSTON MARATHON 2023

Geoffrey Lundell-Smith

Bib: 5523•M

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0:00
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Overall
#0 / 26622
Top 15%
Gender (Male)
#0 / 15176
Top 24%
Division (M18-39)
#0 / 5285
Top 49%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:24
Rank: #5453
Start → 5K
21:24 | 6:53/mi
10K· 6.21 mi
42:29
Rank: #5270 (+183)
5K → 10K
21:05 | 6:47/mi
15K· 9.32 mi
1:03:39
Rank: #5249 (+21)
10K → 15K
21:10 | 6:49/mi
20K· 12.43 mi
1:24:50
Rank: #5085 (+164)
15K → 20K
21:11 | 6:49/mi
Half· 13.11 mi
1:29:28
Rank: #5099 (-14)
20K → Half
4:38 | 6:47/mi
25K· 15.53 mi
1:45:57
Rank: #4896 (+203)
Half → 25K
16:29 | 6:48/mi
30K· 18.64 mi
2:07:30
Rank: #4663 (+233)
25K → 30K
21:33 | 6:56/mi
20M
2:16:50
Rank: #4516 (+147)
30K → 20M
9:20 | 6:52/mi
21M
2:24:01
Rank: #4388 (+128)
20M → 21M
7:11 | 7:11/mi
35K· 21.75 mi
2:29:02
Rank: #4336 (+52)
21M → 35K
5:01 | 6:42/mi
23M
2:37:36
Rank: #4200 (+136)
35K → 23M
8:34 | 6:51/mi
24M
2:44:25
Rank: #4189 (+11)
23M → 24M
6:49 | 6:49/mi
40K· 24.85 mi
2:50:12
Rank: #4097 (+92)
24M → 40K
5:47 | 6:46/mi
25.2M
2:52:41
Rank: #4051 (+46)
40K → 25.2M
2:29 | 7:12/mi
Finish· 26.22 mi
2:59:19
Rank: #3967 (+84)
25.2M → Finish
6:38 | 6:31/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:29:28
Pace6:49 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:29:51
Pace6:51 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:5821:246:5321:24
6:53
-
10K
6.21 mi10:46:0342:296:5021:05
6:47
-0:06
15K
9.32 mi11:07:131:03:396:5021:10
6:49
+0:02
20K
12.43 mi11:28:241:24:506:5021:11
6:49
0:00
Half
13.11 mi11:33:021:29:286:494:38
6:47
-0:02
25K
15.53 mi11:49:311:45:576:4916:29
6:48
+0:01
30K
18.64 mi12:11:042:07:306:5021:33
6:56
+0:08
20M
20.00 mi12:20:242:16:506:509:20
6:52
-0:04
21M
21.00 mi12:27:352:24:016:517:11
7:11
+0:19
35K
21.75 mi12:32:362:29:026:515:01
6:42
-0:29
23M
23.00 mi12:41:102:37:366:518:34
6:51
+0:09
24M
24.00 mi12:47:592:44:256:516:49
6:49
-0:02
40K
24.85 mi12:53:462:50:126:515:47
6:46
-0:03
25.2M
25.20 mi12:56:152:52:416:512:29
7:12
+0:26
Finish
26.22 mi13:02:532:59:196:516:38
6:31
-0:41

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

6:51 /mi

Slowest Pace

7:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:39

95% of race

Time at Steady Pace

9:40

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:50 /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 mi10:24:5821:246:5321:24
6:53
#5453
10K
6.21 mi10:46:0342:296:5021:05
6:47
#5270
15K
9.32 mi11:07:131:03:396:5021:10
6:49
#5249
20K
12.43 mi11:28:241:24:506:5021:11
6:49
#5085
Half
13.11 mi11:33:021:29:286:494:38
6:47
#5099
25K
15.53 mi11:49:311:45:576:4916:29
6:48
#4896
30K
18.64 mi12:11:042:07:306:5021:33
6:56
#4663
20M
20.00 mi12:20:242:16:506:509:20
6:52
#4516
21M
21.00 mi12:27:352:24:016:517:11
7:11
#4388
35K
21.75 mi12:32:362:29:026:515:01
6:42
#4336
23M
23.00 mi12:41:102:37:366:518:34
6:51
#4200
24M
24.00 mi12:47:592:44:256:516:49
6:49
#4189
40K
24.85 mi12:53:462:50:126:515:47
6:46
#4097
25.2M
25.20 mi12:56:152:52:416:512:29
7:12
#4051
Finish
26.22 mi13:02:532:59:196:516:38
6:31
#3967
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5453503650365231(Top 20%)4835(Top 32%)4835(Top 91%)
10K6.21 mi3.10 mi5270+1834874+1624874+1625132(Top 19%)4746(Top 31%)4746(Top 90%)
15K9.32 mi3.11 mi5249+214862+124862+125231(Top 20%)4835(Top 32%)4835(Top 91%)
20K12.43 mi3.11 mi5085+1644718+1444718+1444593(Top 17%)4278(Top 28%)4278(Top 81%)
Half13.11 mi0.68 mi5099-144730-124730-125121(Top 19%)4731(Top 31%)4731(Top 90%)
25K15.53 mi2.42 mi4896+2034551+1794551+1794126(Top 15%)3866(Top 25%)3866(Top 73%)
30K18.64 mi3.11 mi4663+2334348+2034348+2033906(Top 15%)3655(Top 24%)3655(Top 69%)
20M20.00 mi1.36 mi4516+1474210+1384210+1383232(Top 12%)3029(Top 20%)3029(Top 57%)
21M21.00 mi1.00 mi4388+1284100+1104100+1103020(Top 11%)2831(Top 19%)2831(Top 54%)
35K21.75 mi0.75 mi4336+524050+504050+503608(Top 14%)3342(Top 22%)3342(Top 63%)
23M23.00 mi1.25 mi4200+1363931+1193931+1192917(Top 11%)2727(Top 18%)2727(Top 52%)
24M24.00 mi1.00 mi4189+113920+113920+113742(Top 14%)3428(Top 23%)3428(Top 65%)
40K24.85 mi0.85 mi4097+923834+863834+862675(Top 10%)2474(Top 16%)2474(Top 47%)
25.2M25.20 mi0.35 mi4051+463790+443790+442564(Top 10%)2377(Top 16%)2377(Top 45%)
Finish26.22 mi1.02 mi3967+843712+783712+782547(Top 10%)2341(Top 15%)2341(Top 44%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5231

Males

4835

M18-39

4835

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5132

Males

4746

M18-39

4746

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5231

Males

4835

M18-39

4835

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4593

Males

4278

M18-39

4278

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5121

Males

4731

M18-39

4731

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4126

Males

3866

M18-39

3866

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

3906

Males

3655

M18-39

3655

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3232

Males

3029

M18-39

3029

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

3020

Males

2831

M18-39

2831

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

3608

Males

3342

M18-39

3342

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

2917

Males

2727

M18-39

2727

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3742

Males

3428

M18-39

3428

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2675

Males

2474

M18-39

2474

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2564

Males

2377

M18-39

2377

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2547

Males

2341

M18-39

2341

Passing Analysis

Category:
Athletes Passed
1946
Passed By
460
Net Change
+1486
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5453
5K → 10K311128+183#5453#5270
10K → 15K11291+21#5270#5249
15K → 20K21147+164#5249#5085
20K → Half1630-14#5085#5099
Half → 25K21916+203#5099#4896
25K → 30K26835+233#4896#4663
30K → 20M1536+147#4663#4516
20M → 21M1368+128#4516#4388
21M → 35K6917+52#4388#4336
35K → 23M1459+136#4336#4200
23M → 24M5443+11#4200#4189
24M → 40K1019+92#4189#4097
40K → 25.2M515+46#4097#4051
25.2M → Finish10016+84#4051#3967
TOTALS1946460+1486
📊

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