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BOSTON MARATHON 2025

Lukas Gaffney

Bib: 7723•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 42%
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:34
Rank: #10009
Start → 5K
22:34 | 7:16/mi
10K· 6.21 mi
45:07
Rank: #9994 (+15)
5K → 10K
22:33 | 7:15/mi
15K· 9.32 mi
1:07:46
Rank: #9945 (+49)
10K → 15K
22:39 | 7:17/mi
20K· 12.43 mi
1:30:39
Rank: #9821 (+124)
15K → 20K
22:53 | 7:22/mi
Half· 13.11 mi
1:35:27
Rank: #9704 (+117)
20K → Half
4:48 | 7:02/mi
25K· 15.53 mi
1:53:19
Rank: #9526 (+178)
Half → 25K
17:52 | 7:22/mi
30K· 18.64 mi
2:17:30
Rank: #9498 (+28)
25K → 30K
24:11 | 7:47/mi
20M
2:28:16
Rank: #9500 (-2)
30K → 20M
10:46 | 7:55/mi
21M
2:36:59
Rank: #9598 (-98)
20M → 21M
8:43 | 8:43/mi
35K· 21.75 mi
2:43:10
Rank: #9748 (-150)
21M → 35K
6:11 | 8:16/mi
23M
2:54:31
Rank: #10252 (-504)
35K → 23M
11:21 | 9:04/mi
24M
3:03:49
Rank: #10690 (-438)
23M → 24M
9:18 | 9:18/mi
40K· 24.85 mi
3:12:34
Rank: #11237 (-547)
24M → 40K
8:45 | 10:14/mi
25.2M
3:16:24
Rank: #11481 (-244)
40K → 25.2M
3:50 | 11:07/mi
Finish· 26.22 mi
3:26:03
Rank: #12011 (-530)
25.2M → Finish
9:39 | 9:28/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:27
Pace7:17 /mi
2nd Half
Distance13.11 mi
Time1:50:36
Pace8:26 /mi
📊Positive Split: 15.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:3222:347:1622:34
7:16
-
10K
6.21 mi10:53:0545:077:1622:33
7:15
-0:01
15K
9.32 mi11:15:441:07:467:1622:39
7:17
+0:02
20K
12.43 mi11:38:371:30:397:1822:53
7:22
+0:05
Half
13.11 mi11:43:251:35:277:174:48
7:02
-0:20
25K
15.53 mi12:01:171:53:197:1817:52
7:22
+0:20
30K
18.64 mi12:25:282:17:307:2324:11
7:47
+0:25
20M
20.00 mi12:36:142:28:167:2510:46
7:55
+0:08
21M
21.00 mi12:44:572:36:597:298:43
8:43
+0:48
35K
21.75 mi12:51:082:43:107:306:11
8:16
-0:27
23M
23.00 mi13:02:292:54:317:3511:21
9:04
+0:48
24M
24.00 mi13:11:473:03:497:409:18
9:18
+0:14
40K
24.85 mi13:20:323:12:347:458:45
10:14
+0:56
25.2M
25.20 mi13:24:223:16:247:483:50
11:07
+0:53
Finish
26.22 mi13:34:013:26:037:529:39
9:28
-1:39

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

7:02 /mi

Average Pace

7:52 /mi

Slowest Pace

11:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:12:34

35% of race

Time at Steady Pace

1:21:53

40% of race

Time at Slower Pace

51:36

25% of race

Average Pace: 7:52 /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 mi10:30:3222:347:1622:34
7:16
#10009
10K
6.21 mi10:53:0545:077:1622:33
7:15
#9994
15K
9.32 mi11:15:441:07:467:1622:39
7:17
#9945
20K
12.43 mi11:38:371:30:397:1822:53
7:22
#9821
Half
13.11 mi11:43:251:35:277:174:48
7:02
#9704
25K
15.53 mi12:01:171:53:197:1817:52
7:22
#9526
30K
18.64 mi12:25:282:17:307:2324:11
7:47
#9498
20M
20.00 mi12:36:142:28:167:2510:46
7:55
#9500
21M
21.00 mi12:44:572:36:597:298:43
8:43
#9598
35K
21.75 mi12:51:082:43:107:306:11
8:16
#9748
23M
23.00 mi13:02:292:54:317:3511:21
9:04
#10252
24M
24.00 mi13:11:473:03:497:409:18
9:18
#10690
40K
24.85 mi13:20:323:12:347:458:45
10:14
#11237
25.2M
25.20 mi13:24:223:16:247:483:50
11:07
#11481
Finish
26.22 mi13:34:013:26:037:529:39
9:28
#12011
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi10009817581759920(Top 35%)8043(Top 50%)8043(Top 143%)
10K6.21 mi3.10 mi9994+158166+98166+99983(Top 35%)8133(Top 50%)8133(Top 144%)
15K9.32 mi3.11 mi9945+498103+638103+639920(Top 35%)8043(Top 50%)8043(Top 143%)
20K12.43 mi3.11 mi9821+1248014+898014+899593(Top 34%)7792(Top 48%)7792(Top 138%)
Half13.11 mi0.68 mi9704+1177943+717943+717849(Top 28%)6811(Top 42%)6811(Top 121%)
25K15.53 mi2.42 mi9526+1787807+1367807+1368901(Top 31%)7290(Top 45%)7290(Top 129%)
30K18.64 mi3.11 mi9498+287750+577750+579812(Top 35%)7592(Top 47%)7592(Top 135%)
20M20.00 mi1.36 mi9500-27704+467704+469928(Top 35%)7509(Top 47%)7509(Top 133%)
21M21.00 mi1.00 mi9598-987735-317735-3111767(Top 41%)8259(Top 51%)8259(Top 146%)
35K21.75 mi0.75 mi9748-1507794-597794-5913991(Top 49%)9276(Top 58%)9276(Top 164%)
23M23.00 mi1.25 mi10252-5047982-1887982-18816599(Top 58%)10323(Top 64%)10323(Top 183%)
24M24.00 mi1.00 mi10690-4388169-1878169-18718790(Top 66%)11304(Top 70%)11304(Top 200%)
40K24.85 mi0.85 mi11237-5478394-2258394-22521153(Top 74%)12351(Top 77%)12351(Top 219%)
25.2M25.20 mi0.35 mi11481-2448496-1028496-10220935(Top 74%)12243(Top 76%)12243(Top 217%)
Finish26.22 mi1.02 mi12011-5308728-2328728-23221046(Top 74%)12307(Top 76%)12307(Top 218%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21stories
+97ft-345ft

Overall

9920

Males

8043

M18-39

8043

5K→10K

3.1 - 6.2 mi

Top 35%
×5stories
+79ft-138ft

Overall

9983

Males

8133

M18-39

8133

10K→15K

6.2 - 9.3 mi

Top 35%
×3stories
+67ft-78ft

Overall

9920

Males

8043

M18-39

8043

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

9593

Males

7792

M18-39

7792

20K→Half

12.4 - 13.1 mi

Top 28%
×2stories
+19ft-37ft

Overall

7849

Males

6811

M18-39

6811

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8901

Males

7290

M18-39

7290

25K→30K

15.5 - 18.6 mi

Top 35%
×9stories
+181ft-148ft

Overall

9812

Males

7592

M18-39

7592

30K→20M

18.6 - 20.0 mi

Top 35%
×5stories
+64ft-50ft

Overall

9928

Males

7509

M18-39

7509

20M→21M

20.0 - 21.0 mi

Top 41%
×8stories
+106ft-24ft

Overall

11767

Males

8259

M18-39

8259

21M→35K

21.0 - 21.8 mi

Top 49%
×7stories
+17ft-86ft

Overall

13991

Males

9276

M18-39

9276

35K→23M

21.8 - 23.0 mi

Top 58%
×5stories
+23ft-63ft

Overall

16599

Males

10323

M18-39

10323

23M→24M

23.0 - 24.0 mi

Top 66%
×6stories
+12ft-82ft

Overall

18790

Males

11304

M18-39

11304

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

21153

Males

12351

M18-39

12351

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

20935

Males

12243

M18-39

12243

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

21046

Males

12307

M18-39

12307

Passing Analysis

Category:
Athletes Passed
1542
Passed By
3542
Net Change
-2002
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10009
5K → 10K245230+15#10009#9994
10K → 15K198149+49#9994#9945
15K → 20K239115+124#9945#9821
20K → Half1214+117#9821#9704
Half → 25K24163+178#9704#9526
25K → 30K238210+28#9526#9498
30K → 20M109111-2#9498#9500
20M → 21M57155-98#9500#9598
21M → 35K32182-150#9598#9748
35K → 23M26528-504#9748#10252
23M → 24M16454-438#10252#10690
24M → 40K7554-547#10690#11237
40K → 25.2M5249-244#11237#11481
25.2M → Finish8538-530#11481#12011
TOTALS15423542-2002
📊

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