Boston Marathon logo
BOSTON MARATHON 2023

Luca Fu

Bib: 27755•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
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
10:36/mi
32:57
↑ 97↓ 3451.5%
10K· 6.21 mi
10:53/mi
1:06:45
↑ 79↓ 1380.4%
15K· 9.32 mi
11:15/mi
1:41:42
↑ 67↓ 78
20K· 12.43 mi
11:46/mi
2:18:14
↑ 106↓ 860.1%
Half· 13.11 mi
11:30/mi
2:26:05
↑ 19↓ 370.5%
25K· 15.53 mi
12:24/mi
2:56:10
↑ 66↓ 880.2%
30K· 18.64 mi
13:38/mi
3:38:32
↑ 181↓ 1480.2%
20M
13:20/mi
3:56:39
↑ 64↓ 500.2%
21M
15:53/mi
4:12:32
↑ 106↓ 241.6%
35K· 21.75 mi
12:47/mi
4:22:06
↑ 17↓ 861.7%
23M
12:20/mi
4:37:33
↑ 23↓ 630.6%
24M
12:19/mi
4:49:52
↓ 821.3%
40K· 24.85 mi
12:40/mi
5:00:42
↓ 200.3%
25.2M
14:59/mi
5:05:52
↑ 13↓ 160.2%
Finish· 26.22 mi
11:35/mi
5:17:40
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:26:05
Pace11:09 /mi
2nd Half
Distance13.11 mi
Time2:51:35
Pace13:05 /mi
📊Positive Split: 17.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:4832:5710:3632:57
10:36
-
10K
6.21 mi12:25:361:06:4510:4533:48
10:53
+0:17
15K
9.32 mi13:00:331:41:4210:5534:57
11:15
+0:22
20K
12.43 mi13:37:052:18:1411:0736:32
11:46
+0:31
Half
13.11 mi13:44:562:26:0511:097:51
11:30
-0:16
25K
15.53 mi14:15:012:56:1011:2030:05
12:24
+0:54
30K
18.64 mi14:57:233:38:3211:4342:22
13:38
+1:14
20M
20.00 mi15:15:303:56:3911:5018:07
13:20
-0:18
21M
21.00 mi15:31:234:12:3212:0215:53
15:53
+2:33
35K
21.75 mi15:40:574:22:0612:039:34
12:47
-3:06
23M
23.00 mi15:56:244:37:3312:0415:27
12:20
-0:27
24M
24.00 mi16:08:434:49:5212:0512:19
12:19
-0:01
40K
24.85 mi16:19:335:00:4212:0610:50
12:40
+0:21
25.2M
25.20 mi16:24:435:05:5212:085:10
14:59
+2:19
Finish
26.22 mi16:36:315:17:4012:0711:48
11:35
-3:24

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

10:36 /mi

Average Pace

12:07 /mi

Slowest Pace

15:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:01:21

38% of race

Time at Steady Pace

1:54:47

36% of race

Time at Slower Pace

1:21:32

26% of race

Average Pace: 12:07 /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 mi11:51:4832:5710:3632:57
10:36
#24963
10K
6.21 mi12:25:361:06:4510:4533:48
10:53
#25160
15K
9.32 mi13:00:331:41:4210:5534:57
11:15
#25320
20K
12.43 mi13:37:052:18:1411:0736:32
11:46
#25392
Half
13.11 mi13:44:562:26:0511:097:51
11:30
#25404
25K
15.53 mi14:15:012:56:1011:2030:05
12:24
#25433
30K
18.64 mi14:57:233:38:3211:4342:22
13:38
#25562
20M
20.00 mi15:15:303:56:3911:5018:07
13:20
#25561
21M
21.00 mi15:31:234:12:3212:0215:53
15:53
#25620
35K
21.75 mi15:40:574:22:0612:039:34
12:47
#25616
23M
23.00 mi15:56:244:37:3312:0415:27
12:20
#25562
24M
24.00 mi16:08:434:49:5212:0512:19
12:19
#25549
40K
24.85 mi16:19:335:00:4212:0610:50
12:40
#25527
25.2M
25.20 mi16:24:435:05:5212:085:10
14:59
#25527
Finish
26.22 mi16:36:315:17:4012:0711:48
11:35
#25513
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi24963145271452725472(Top 96%)14722(Top 97%)14722(Top 717%)
10K6.21 mi3.10 mi25160-19714613-8614613-8625316(Top 95%)14677(Top 97%)14677(Top 715%)
15K9.32 mi3.11 mi25320-16014674-6114674-6125472(Top 96%)14722(Top 97%)14722(Top 717%)
20K12.43 mi3.11 mi25392-7214686-1214686-1225486(Top 96%)14697(Top 97%)14697(Top 716%)
Half13.11 mi0.68 mi25404-1214691-514691-525490(Top 96%)14686(Top 97%)14686(Top 716%)
25K15.53 mi2.42 mi25433-2914690+114690+125466(Top 96%)14677(Top 97%)14677(Top 715%)
30K18.64 mi3.11 mi25562-12914733-4314733-4325835(Top 97%)14798(Top 98%)14798(Top 721%)
20M20.00 mi1.36 mi25561+114728+514728+525432(Top 96%)14592(Top 96%)14592(Top 711%)
21M21.00 mi1.00 mi25620-5914756-2814756-2826182(Top 98%)14946(Top 98%)14946(Top 728%)
35K21.75 mi0.75 mi25616+414747+914747+925402(Top 95%)14518(Top 96%)14518(Top 708%)
23M23.00 mi1.25 mi25562+5414715+3214715+3224417(Top 92%)14050(Top 93%)14050(Top 685%)
24M24.00 mi1.00 mi25549+1314703+1214703+1224870(Top 93%)14233(Top 94%)14233(Top 694%)
40K24.85 mi0.85 mi25527+2214686+1714686+1724643(Top 93%)14131(Top 93%)14131(Top 689%)
25.2M25.20 mi0.35 mi2552714683+314683+325695(Top 97%)14645(Top 97%)14645(Top 714%)
Finish26.22 mi1.02 mi25513+1414674+914674+924783(Top 93%)14214(Top 94%)14214(Top 693%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21story building
+97ft-345ft

Overall

25472

Males

14722

M50-54

14722

5K→10K

3.1 - 6.2 mi

Top 95%
×5story building
+79ft-138ft

Overall

25316

Males

14677

M50-54

14677

10K→15K

6.2 - 9.3 mi

Top 96%
×3story building
+67ft-78ft

Overall

25472

Males

14722

M50-54

14722

15K→20K

9.3 - 12.4 mi

Top 96%
×5story building
+106ft-86ft

Overall

25486

Males

14697

M50-54

14697

20K→Half

12.4 - 13.1 mi

Top 96%
×2story building
+19ft-37ft

Overall

25490

Males

14686

M50-54

14686

Half→25K

13.1 - 15.5 mi

Top 96%
×4story building
+66ft-88ft

Overall

25466

Males

14677

M50-54

14677

25K→30K

15.5 - 18.6 mi

Top 97%
×9story building
+181ft-148ft

Overall

25835

Males

14798

M50-54

14798

30K→20M

18.6 - 20.0 mi

Top 96%
×5story building
+64ft-50ft

Overall

25432

Males

14592

M50-54

14592

20M→21M

20.0 - 21.0 mi

Top 98%
×8story building
+106ft-24ft

Overall

26182

Males

14946

M50-54

14946

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

25402

Males

14518

M50-54

14518

35K→23M

21.8 - 23.0 mi

Top 92%
×5story building
+23ft-63ft

Overall

24417

Males

14050

M50-54

14050

23M→24M

23.0 - 24.0 mi

Top 93%
×6story building
+12ft-82ft

Overall

24870

Males

14233

M50-54

14233

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

24643

Males

14131

M50-54

14131

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1story
+13ft-16ft

Overall

25695

Males

14645

M50-54

14645

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2story building
+22ft-21ft

Overall

24783

Males

14214

M50-54

14214

Passing Analysis

Category:
Athletes Passed
516
Passed By
1066
Net Change
-550
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24963
5K → 10K108305-197#24963#25160
10K → 15K54214-160#25160#25320
15K → 20K63135-72#25320#25392
20K → Half1325-12#25392#25404
Half → 25K4473-29#25404#25433
25K → 30K32161-129#25433#25562
30K → 20M3534+1#25562#25561
20M → 21M968-59#25561#25620
21M → 35K1612+4#25620#25616
35K → 23M584+54#25616#25562
23M → 24M2512+13#25562#25549
24M → 40K3210+22#25549#25527
40K → 25.2M990#25527#25527
25.2M → Finish184+14#25527#25513
TOTALS5161066-550
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing