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BOSTON MARATHON 2025

Patrick Chiu

Bib: 3502•M

BC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 20%
Gender (Male)
#0 / 16105
Top 31%
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
19:31
Rank: #2335
Start → 5K
19:31 | 6:17/mi
10K· 6.21 mi
38:57
Rank: #2236 (+99)
5K → 10K
19:26 | 6:15/mi
15K· 9.32 mi
58:49
Rank: #2456 (-220)
10K → 15K
19:52 | 6:24/mi
20K· 12.43 mi
1:20:00
Rank: #3097 (-641)
15K → 20K
21:11 | 6:49/mi
Half· 13.11 mi
1:24:41
Rank: #3232 (-135)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:43:16
Rank: #4354 (-1122)
Half → 25K
18:35 | 7:40/mi
30K· 18.64 mi
2:07:24
Rank: #5469 (-1115)
25K → 30K
24:08 | 7:46/mi
20M
2:17:47
Rank: #5665 (-196)
30K → 20M
10:23 | 7:38/mi
21M
2:25:49
Rank: #5710 (-45)
20M → 21M
8:02 | 8:02/mi
35K· 21.75 mi
2:31:25
Rank: #5783 (-73)
21M → 35K
5:36 | 7:29/mi
23M
2:40:51
Rank: #5766 (+17)
35K → 23M
9:26 | 7:32/mi
24M
2:47:50
Rank: #5656 (+110)
23M → 24M
6:59 | 6:59/mi
40K· 24.85 mi
2:53:56
Rank: #5562 (+94)
24M → 40K
6:06 | 7:08/mi
25.2M
2:56:43
Rank: #5539 (+23)
40K → 25.2M
2:47 | 8:04/mi
Finish· 26.22 mi
3:04:29
Rank: #5633 (-94)
25.2M → Finish
7:46 | 7:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:41
Pace6:28 /mi
2nd Half
Distance13.11 mi
Time1:39:48
Pace7:37 /mi
📊Positive Split: 17.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:4019:316:1719:31
6:17
-
10K
6.21 mi10:41:0638:576:1619:26
6:15
-0:02
15K
9.32 mi11:00:5858:496:1919:52
6:24
+0:09
20K
12.43 mi11:22:091:20:006:2621:11
6:49
+0:25
Half
13.11 mi11:26:501:24:416:284:41
6:52
+0:03
25K
15.53 mi11:45:251:43:166:3918:35
7:40
+0:48
30K
18.64 mi12:09:332:07:246:5024:08
7:46
+0:06
20M
20.00 mi12:19:562:17:476:5310:23
7:38
-0:08
21M
21.00 mi12:27:582:25:496:578:02
8:02
+0:24
35K
21.75 mi12:33:342:31:256:585:36
7:29
-0:33
23M
23.00 mi12:43:002:40:517:009:26
7:32
+0:03
24M
24.00 mi12:49:592:47:507:006:59
6:59
-0:33
40K
24.85 mi12:56:052:53:567:006:06
7:08
+0:09
25.2M
25.20 mi12:58:522:56:437:012:47
8:04
+0:56
Finish
26.22 mi13:06:383:04:297:027:46
7:37
-0:27

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

6:15 /mi

Average Pace

7:02 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:46

53% of race

Time at Steady Pace

1:15:54

41% of race

Time at Slower Pace

10:49

6% of race

Average Pace: 7:02 /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 mi10:21:4019:316:1719:31
6:17
#2335
10K
6.21 mi10:41:0638:576:1619:26
6:15
#2236
15K
9.32 mi11:00:5858:496:1919:52
6:24
#2456
20K
12.43 mi11:22:091:20:006:2621:11
6:49
#3097
Half
13.11 mi11:26:501:24:416:284:41
6:52
#3232
25K
15.53 mi11:45:251:43:166:3918:35
7:40
#4354
30K
18.64 mi12:09:332:07:246:5024:08
7:46
#5469
20M
20.00 mi12:19:562:17:476:5310:23
7:38
#5665
21M
21.00 mi12:27:582:25:496:578:02
8:02
#5710
35K
21.75 mi12:33:342:31:256:585:36
7:29
#5783
23M
23.00 mi12:43:002:40:517:009:26
7:32
#5766
24M
24.00 mi12:49:592:47:507:006:59
6:59
#5656
40K
24.85 mi12:56:052:53:567:006:06
7:08
#5562
25.2M
25.20 mi12:58:522:56:437:012:47
8:04
#5539
Finish
26.22 mi13:06:383:04:297:027:46
7:37
#5633
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2335222922292919(Top 10%)2783(Top 17%)2783(Top 49%)
10K6.21 mi3.10 mi2236+992134+952134+952180(Top 8%)2083(Top 13%)2083(Top 37%)
15K9.32 mi3.11 mi2456-2202344-2102344-2102919(Top 10%)2783(Top 17%)2783(Top 49%)
20K12.43 mi3.11 mi3097-6412952-6082952-6085493(Top 19%)5020(Top 31%)5020(Top 89%)
Half13.11 mi0.68 mi3232-1353078-1263078-1266641(Top 23%)5937(Top 37%)5937(Top 105%)
25K15.53 mi2.42 mi4354-11224083-10054083-100511240(Top 40%)8495(Top 53%)8495(Top 151%)
30K18.64 mi3.11 mi5469-11155011-9285011-9289658(Top 34%)7504(Top 47%)7504(Top 133%)
20M20.00 mi1.36 mi5665-1965165-1545165-1547948(Top 28%)6402(Top 40%)6402(Top 113%)
21M21.00 mi1.00 mi5710-455190-255190-257508(Top 26%)5973(Top 37%)5973(Top 106%)
35K21.75 mi0.75 mi5783-735232-425232-428466(Top 30%)6558(Top 41%)6558(Top 116%)
23M23.00 mi1.25 mi5766+175200+325200+326810(Top 24%)5477(Top 34%)5477(Top 97%)
24M24.00 mi1.00 mi5656+1105100+1005100+1004561(Top 16%)3954(Top 25%)3954(Top 70%)
40K24.85 mi0.85 mi5562+945015+855015+854686(Top 16%)3991(Top 25%)3991(Top 71%)
25.2M25.20 mi0.35 mi5539+234990+254990+256283(Top 22%)4916(Top 31%)4916(Top 87%)
Finish26.22 mi1.02 mi5633-945046-565046-5610073(Top 35%)7010(Top 44%)7010(Top 124%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2919

Males

2783

M18-39

2783

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2180

Males

2083

M18-39

2083

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2919

Males

2783

M18-39

2783

15K→20K

9.3 - 12.4 mi

Top 19%
×5stories
+106ft-86ft

Overall

5493

Males

5020

M18-39

5020

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6641

Males

5937

M18-39

5937

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

11240

Males

8495

M18-39

8495

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

9658

Males

7504

M18-39

7504

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

7948

Males

6402

M18-39

6402

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

7508

Males

5973

M18-39

5973

21M→35K

21.0 - 21.8 mi

Top 30%
×7stories
+17ft-86ft

Overall

8466

Males

6558

M18-39

6558

35K→23M

21.8 - 23.0 mi

Top 24%
×5stories
+23ft-63ft

Overall

6810

Males

5477

M18-39

5477

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4561

Males

3954

M18-39

3954

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4686

Males

3991

M18-39

3991

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

6283

Males

4916

M18-39

4916

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2stories
+22ft-21ft

Overall

10073

Males

7010

M18-39

7010

Passing Analysis

Category:
Athletes Passed
702
Passed By
4000
Net Change
-3298
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2335
5K → 10K16667+99#2335#2236
10K → 15K27247-220#2236#2456
15K → 20K7648-641#2456#3097
20K → Half0135-135#3097#3232
Half → 25K31125-1122#3232#4354
25K → 30K261141-1115#4354#5469
30K → 20M27223-196#5469#5665
20M → 21M4893-45#5665#5710
21M → 35K2598-73#5710#5783
35K → 23M8972+17#5783#5766
23M → 24M1166+110#5766#5656
24M → 40K10814+94#5656#5562
40K → 25.2M3714+23#5562#5539
25.2M → Finish23117-94#5539#5633
TOTALS7024000-3298
📊

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