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BOSTON MARATHON 2024

Fengfa An

Bib: 13379•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 34%
Gender (Male)
#0 / 14578
Top 45%
Masters (Masters Men)
#0 / 9729
Top 35%
Division (M50-54)
#0 / 1935
Top 36%
Race Day Weather
55°/45°F
scattered clouds

⏱️ 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
7:18/mi
22:42
↑ 97↓ 3451.5%
10K· 6.21 mi
7:28/mi
45:54
↑ 79↓ 1380.4%
15K· 9.32 mi
7:24/mi
1:08:53
↑ 67↓ 78
20K· 12.43 mi
7:43/mi
1:32:51
↑ 106↓ 860.1%
Half· 13.11 mi
7:42/mi
1:38:06
↑ 19↓ 370.5%
25K· 15.53 mi
8:07/mi
1:57:46
↑ 66↓ 880.2%
30K· 18.64 mi
8:32/mi
2:24:17
↑ 181↓ 1480.2%
20M
8:10/mi
2:35:23
↑ 64↓ 500.2%
21M
10:25/mi
2:45:48
↑ 106↓ 241.6%
35K· 21.75 mi
7:16/mi
2:51:14
↑ 17↓ 861.7%
23M
8:18/mi
3:01:37
↑ 23↓ 630.6%
24M
7:16/mi
3:08:53
↓ 821.3%
40K· 24.85 mi
7:45/mi
3:15:31
↓ 200.3%
25.2M
11:59/mi
3:19:39
↑ 13↓ 160.2%
Finish· 26.22 mi
7:09/mi
3:26:56
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:06
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:48:50
Pace8:18 /mi
📊Positive Split: 10.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:2222:427:1822:42
7:18
-
10K
6.21 mi11:16:3445:547:2323:12
7:28
+0:10
15K
9.32 mi11:39:331:08:537:2322:59
7:24
-0:04
20K
12.43 mi12:03:311:32:517:2823:58
7:43
+0:19
Half
13.11 mi12:08:461:38:067:295:15
7:42
-0:01
25K
15.53 mi12:28:261:57:467:3519:40
8:07
+0:25
30K
18.64 mi12:54:572:24:177:4426:31
8:32
+0:25
20M
20.00 mi13:06:032:35:237:4611:06
8:10
-0:22
21M
21.00 mi13:16:282:45:487:5410:25
10:25
+2:15
35K
21.75 mi13:21:542:51:147:525:26
7:16
-3:09
23M
23.00 mi13:32:173:01:377:5410:23
8:18
+1:02
24M
24.00 mi13:39:333:08:537:527:16
7:16
-1:02
40K
24.85 mi13:46:113:15:317:526:38
7:45
+0:29
25.2M
25.20 mi13:50:193:19:397:554:08
11:59
+4:14
Finish
26.22 mi13:57:363:26:567:547:17
7:09
-4:50

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

7:09 /mi

Average Pace

7:54 /mi

Slowest Pace

11:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:45:52

80% of race

Time at Slower Pace

41:04

20% of race

Average Pace: 7:54 /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 mi10:53:2222:427:1822:42
7:18
#9214
10K
6.21 mi11:16:3445:547:2323:12
7:28
#9522
15K
9.32 mi11:39:331:08:537:2322:59
7:24
#9271
20K
12.43 mi12:03:311:32:517:2823:58
7:43
#9397
Half
13.11 mi12:08:461:38:067:295:15
7:42
#9456
25K
15.53 mi12:28:261:57:467:3519:40
8:07
#9657
30K
18.64 mi12:54:572:24:177:4426:31
8:32
#9823
20M
20.00 mi13:06:032:35:237:4611:06
8:10
#9559
21M
21.00 mi13:16:282:45:487:5410:25
10:25
#9897
35K
21.75 mi13:21:542:51:147:525:26
7:16
#9594
23M
23.00 mi13:32:173:01:377:5410:23
8:18
#9369
24M
24.00 mi13:39:333:08:537:527:16
7:16
#8983
40K
24.85 mi13:46:113:15:317:526:38
7:45
#8738
25.2M
25.20 mi13:50:193:19:397:554:08
11:59
#8976
Finish
26.22 mi13:57:363:26:567:547:17
7:09
#8677
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi9214752775278868(Top 35%)7215(Top 49%)7215(Top 373%)
10K6.21 mi3.10 mi9522-3087671-1447671-1449973(Top 39%)7867(Top 54%)7867(Top 407%)
15K9.32 mi3.11 mi9271+2517507+1647507+1648868(Top 35%)7215(Top 49%)7215(Top 373%)
20K12.43 mi3.11 mi9397-1267531-247531-249833(Top 38%)7565(Top 52%)7565(Top 391%)
Half13.11 mi0.68 mi9456-597557-267557-2610483(Top 41%)7903(Top 54%)7903(Top 408%)
25K15.53 mi2.42 mi9657-2017595-387595-3810849(Top 42%)7932(Top 54%)7932(Top 410%)
30K18.64 mi3.11 mi9823-1667577+187577+1810817(Top 42%)7689(Top 53%)7689(Top 397%)
20M20.00 mi1.36 mi9559+2647383+1947383+1947658(Top 30%)5813(Top 40%)5813(Top 300%)
21M21.00 mi1.00 mi9897-3387495-1127495-11214535(Top 57%)8909(Top 61%)8909(Top 460%)
35K21.75 mi0.75 mi9594+3037306+1897306+1894037(Top 16%)3488(Top 24%)3488(Top 180%)
23M23.00 mi1.25 mi9369+2257129+1777129+1777290(Top 29%)5230(Top 36%)5230(Top 270%)
24M24.00 mi1.00 mi8983+3866893+2366893+2363253(Top 13%)2811(Top 19%)2811(Top 145%)
40K24.85 mi0.85 mi8738+2456719+1746719+1744575(Top 18%)3556(Top 24%)3556(Top 184%)
25.2M25.20 mi0.35 mi8976-2386814-956814-9517274(Top 68%)10043(Top 69%)10043(Top 519%)
Finish26.22 mi1.02 mi8677+2996611+2036611+2033788(Top 15%)3066(Top 21%)3066(Top 158%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21story building
+97ft-345ft

Overall

8868

Males

7215

M50-54

7215

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

9973

Males

7867

M50-54

7867

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+67ft-78ft

Overall

8868

Males

7215

M50-54

7215

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

9833

Males

7565

M50-54

7565

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

10483

Males

7903

M50-54

7903

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

10849

Males

7932

M50-54

7932

25K→30K

15.5 - 18.6 mi

Top 42%
×9story building
+181ft-148ft

Overall

10817

Males

7689

M50-54

7689

30K→20M

18.6 - 20.0 mi

Top 30%
×5story building
+64ft-50ft

Overall

7658

Males

5813

M50-54

5813

20M→21M

20.0 - 21.0 mi

Top 57%
×8story building
+106ft-24ft

Overall

14535

Males

8909

M50-54

8909

21M→35K

21.0 - 21.8 mi

Top 16%
×7story building
+17ft-86ft

Overall

4037

Males

3488

M50-54

3488

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

7290

Males

5230

M50-54

5230

23M→24M

23.0 - 24.0 mi

Top 13%
×6story building
+12ft-82ft

Overall

3253

Males

2811

M50-54

2811

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4575

Males

3556

M50-54

3556

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

17274

Males

10043

M50-54

10043

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2story building
+22ft-21ft

Overall

3788

Males

3066

M50-54

3066

Passing Analysis

Category:
Athletes Passed
2874
Passed By
2334
Net Change
+537
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9214
5K → 10K141449-308#9214#9522
10K → 15K31867+251#9522#9271
15K → 20K177303-126#9271#9397
20K → Half2382-59#9397#9456
Half → 25K145345-201#9456#9657
25K → 30K209374-166#9657#9823
30K → 20M29834+264#9823#9559
20M → 21M50387-338#9559#9897
21M → 35K3030+303#9897#9594
35K → 23M26944+225#9594#9369
23M → 24M3860+386#9369#8983
24M → 40K2472+245#8983#8738
40K → 25.2M9247-238#8738#8976
25.2M → Finish2990+299#8976#8677
TOTALS28742334+537
📊

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