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BOSTON MARATHON 2023

Lukas Gaffney

Bib: 30027•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 23%
Gender (Male)
#0 / 15176
Top 37%
Division (M18-39)
#0 / 5285
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
7:25/mi
23:02
↑ 97↓ 3451.5%
10K· 6.21 mi
7:10/mi
45:17
↑ 79↓ 1380.4%
15K· 9.32 mi
7:14/mi
1:07:45
↑ 67↓ 78
20K· 12.43 mi
7:11/mi
1:30:03
↑ 106↓ 860.1%
Half· 13.11 mi
6:56/mi
1:34:47
↑ 19↓ 370.5%
25K· 15.53 mi
7:12/mi
1:52:14
↑ 66↓ 880.2%
30K· 18.64 mi
7:11/mi
2:14:32
↑ 181↓ 1480.2%
20M
7:08/mi
2:24:14
↑ 64↓ 500.2%
21M
7:33/mi
2:31:47
↑ 106↓ 241.6%
35K· 21.75 mi
7:01/mi
2:37:02
↑ 17↓ 861.7%
23M
7:16/mi
2:46:08
↑ 23↓ 630.6%
24M
7:06/mi
2:53:14
↓ 821.3%
40K· 24.85 mi
7:17/mi
2:59:28
↓ 200.3%
25.2M
7:44/mi
3:02:08
↑ 13↓ 160.2%
Finish· 26.22 mi
6:56/mi
3:09:12
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:34:47
Pace7:14 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:34:25
Pace7:12 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:3723:027:2523:02
7:25
-
10K
6.21 mi12:03:5245:177:1722:15
7:10
-0:15
15K
9.32 mi12:26:201:07:457:1622:28
7:14
+0:04
20K
12.43 mi12:48:381:30:037:1522:18
7:11
-0:03
Half
13.11 mi12:53:221:34:477:144:44
6:56
-0:15
25K
15.53 mi13:10:491:52:147:1317:27
7:12
+0:16
30K
18.64 mi13:33:072:14:327:1322:18
7:11
-0:01
20M
20.00 mi13:42:492:24:147:139:42
7:08
-0:03
21M
21.00 mi13:50:222:31:477:147:33
7:33
+0:25
35K
21.75 mi13:55:372:37:027:135:15
7:01
-0:32
23M
23.00 mi14:04:432:46:087:139:06
7:16
+0:15
24M
24.00 mi14:11:492:53:147:137:06
7:06
-0:10
40K
24.85 mi14:18:032:59:287:136:14
7:17
+0:11
25.2M
25.20 mi14:20:433:02:087:142:40
7:44
+0:27
Finish
26.22 mi14:27:473:09:127:137:04
6:56
-0:48

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

6:56 /mi

Average Pace

7:13 /mi

Slowest Pace

7:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:06:32

99% of race

Time at Steady Pace

2:40

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:13 /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 mi11:41:3723:027:2523:02
7:25
#8904
10K
6.21 mi12:03:5245:177:1722:15
7:10
#8353
15K
9.32 mi12:26:201:07:457:1622:28
7:14
#8216
20K
12.43 mi12:48:381:30:037:1522:18
7:11
#7867
Half
13.11 mi12:53:221:34:477:144:44
6:56
#7761
25K
15.53 mi13:10:491:52:147:1317:27
7:12
#7543
30K
18.64 mi13:33:072:14:327:1322:18
7:11
#7081
20M
20.00 mi13:42:492:24:147:139:42
7:08
#6907
21M
21.00 mi13:50:222:31:477:147:33
7:33
#6740
35K
21.75 mi13:55:372:37:027:135:15
7:01
#6672
23M
23.00 mi14:04:432:46:087:139:06
7:16
#6545
24M
24.00 mi14:11:492:53:147:137:06
7:06
#6442
40K
24.85 mi14:18:032:59:287:136:14
7:17
#6365
25.2M
25.20 mi14:20:433:02:087:142:40
7:44
#6324
Finish
26.22 mi14:27:473:09:127:137:04
6:56
#6234
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi8904752975297999(Top 30%)6917(Top 46%)6917(Top 131%)
10K6.21 mi3.10 mi8353+5517181+3487181+3487834(Top 29%)6822(Top 45%)6822(Top 129%)
15K9.32 mi3.11 mi8216+1377089+927089+927999(Top 30%)6917(Top 46%)6917(Top 131%)
20K12.43 mi3.11 mi7867+3496854+2356854+2356945(Top 26%)6168(Top 41%)6168(Top 117%)
Half13.11 mi0.68 mi7761+1066776+786776+786199(Top 23%)5642(Top 37%)5642(Top 107%)
25K15.53 mi2.42 mi7543+2186625+1516625+1516652(Top 25%)5899(Top 39%)5899(Top 112%)
30K18.64 mi3.11 mi7081+4626272+3536272+3535373(Top 20%)4898(Top 32%)4898(Top 93%)
20M20.00 mi1.36 mi6907+1746135+1376135+1374818(Top 18%)4398(Top 29%)4398(Top 83%)
21M21.00 mi1.00 mi6740+1675995+1405995+1404836(Top 18%)4363(Top 29%)4363(Top 83%)
35K21.75 mi0.75 mi6672+685933+625933+625449(Top 20%)4845(Top 32%)4845(Top 92%)
23M23.00 mi1.25 mi6545+1275830+1035830+1035147(Top 19%)4574(Top 30%)4574(Top 87%)
24M24.00 mi1.00 mi6442+1035738+925738+925204(Top 20%)4577(Top 30%)4577(Top 87%)
40K24.85 mi0.85 mi6365+775673+655673+655387(Top 20%)4617(Top 30%)4617(Top 87%)
25.2M25.20 mi0.35 mi6324+415641+325641+325030(Top 19%)4307(Top 28%)4307(Top 81%)
Finish26.22 mi1.02 mi6234+905562+795562+794828(Top 18%)4151(Top 27%)4151(Top 79%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21story building
+97ft-345ft

Overall

7999

Males

6917

M18-39

6917

5K→10K

3.1 - 6.2 mi

Top 29%
×5story building
+79ft-138ft

Overall

7834

Males

6822

M18-39

6822

10K→15K

6.2 - 9.3 mi

Top 30%
×3story building
+67ft-78ft

Overall

7999

Males

6917

M18-39

6917

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

6945

Males

6168

M18-39

6168

20K→Half

12.4 - 13.1 mi

Top 23%
×2story building
+19ft-37ft

Overall

6199

Males

5642

M18-39

5642

Half→25K

13.1 - 15.5 mi

Top 25%
×4story building
+66ft-88ft

Overall

6652

Males

5899

M18-39

5899

25K→30K

15.5 - 18.6 mi

Top 20%
×9story building
+181ft-148ft

Overall

5373

Males

4898

M18-39

4898

30K→20M

18.6 - 20.0 mi

Top 18%
×5story building
+64ft-50ft

Overall

4818

Males

4398

M18-39

4398

20M→21M

20.0 - 21.0 mi

Top 18%
×8story building
+106ft-24ft

Overall

4836

Males

4363

M18-39

4363

21M→35K

21.0 - 21.8 mi

Top 20%
×7story building
+17ft-86ft

Overall

5449

Males

4845

M18-39

4845

35K→23M

21.8 - 23.0 mi

Top 19%
×5story building
+23ft-63ft

Overall

5147

Males

4574

M18-39

4574

23M→24M

23.0 - 24.0 mi

Top 20%
×6story building
+12ft-82ft

Overall

5204

Males

4577

M18-39

4577

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5387

Males

4617

M18-39

4617

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5030

Males

4307

M18-39

4307

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2story building
+22ft-21ft

Overall

4828

Males

4151

M18-39

4151

Passing Analysis

Category:
Athletes Passed
2902
Passed By
232
Net Change
+2670
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8904
5K → 10K61766+551#8904#8353
10K → 15K21780+137#8353#8216
15K → 20K3556+349#8216#7867
20K → Half1060+106#7867#7761
Half → 25K23315+218#7761#7543
25K → 30K4642+462#7543#7081
30K → 20M1751+174#7081#6907
20M → 21M1714+167#6907#6740
21M → 35K746+68#6740#6672
35K → 23M13811+127#6672#6545
23M → 24M1129+103#6545#6442
24M → 40K9619+77#6442#6365
40K → 25.2M476+41#6365#6324
25.2M → Finish977+90#6324#6234
TOTALS2902232+2670
📊

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