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BOSTON MARATHON 2025

Noel Loo

Bib: 631•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 2%
Gender (Male)
#0 / 16105
Top 3%
Division (M18-39)
#0 / 5642
Top 9%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
16:51
Rank: #149
Start → 5K
16:51 | 5:25/mi
10K· 6.21 mi
33:49
Rank: #157 (-8)
5K → 10K
16:58 | 5:28/mi
15K· 9.32 mi
50:48
Rank: #144 (+13)
10K → 15K
16:59 | 5:28/mi
20K· 12.43 mi
1:07:53
Rank: #129 (+15)
15K → 20K
17:05 | 5:30/mi
Half· 13.11 mi
1:11:35
Rank: #129
20K → Half
3:42 | 5:25/mi
25K· 15.53 mi
1:24:54
Rank: #125 (+4)
Half → 25K
13:19 | 5:30/mi
30K· 18.64 mi
1:42:32
Rank: #128 (-3)
25K → 30K
17:38 | 5:41/mi
20M
1:51:03
Rank: #145 (-17)
30K → 20M
8:31 | 6:16/mi
21M
1:57:52
Rank: #170 (-25)
20M → 21M
6:49 | 6:49/mi
35K· 21.75 mi
2:02:38
Rank: #181 (-11)
21M → 35K
4:46 | 6:22/mi
23M
2:12:01
Rank: #255 (-74)
35K → 23M
9:23 | 7:30/mi
24M
2:19:40
Rank: #346 (-91)
23M → 24M
7:39 | 7:39/mi
40K· 24.85 mi
2:26:41
Rank: #435 (-89)
24M → 40K
7:01 | 8:12/mi
25.2M
2:29:42
Rank: #483 (-48)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
2:37:21
Rank: #596 (-113)
25.2M → Finish
7:39 | 7:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:11:35
Pace5:28 /mi
2nd Half
Distance13.11 mi
Time1:25:46
Pace6:33 /mi
📊Positive Split: 19.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:16:5816:515:2516:51
5:25
-
10K
6.21 mi10:33:5633:495:2716:58
5:28
+0:03
15K
9.32 mi10:50:5550:485:2716:59
5:28
0:00
20K
12.43 mi11:08:001:07:535:2817:05
5:30
+0:02
Half
13.11 mi11:11:421:11:355:283:42
5:25
-0:05
25K
15.53 mi11:25:011:24:545:2813:19
5:30
+0:05
30K
18.64 mi11:42:391:42:325:3017:38
5:41
+0:11
20M
20.00 mi11:51:101:51:035:338:31
6:16
+0:35
21M
21.00 mi11:57:591:57:525:376:49
6:49
+0:33
35K
21.75 mi12:02:452:02:385:384:46
6:22
-0:27
23M
23.00 mi12:12:082:12:015:449:23
7:30
+1:08
24M
24.00 mi12:19:472:19:405:497:39
7:39
+0:09
40K
24.85 mi12:26:482:26:415:547:01
8:12
+0:33
25.2M
25.20 mi12:29:492:29:425:563:01
8:45
+0:33
Finish
26.22 mi12:37:282:37:216:007:39
7:30
-1:15

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

5:25 /mi

Average Pace

6:00 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:32

65% of race

Time at Steady Pace

20:06

13% of race

Time at Slower Pace

34:43

22% of race

Average Pace: 6:00 /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 mi10:16:5816:515:2516:51
5:25
#149
10K
6.21 mi10:33:5633:495:2716:58
5:28
#157
15K
9.32 mi10:50:5550:485:2716:59
5:28
#144
20K
12.43 mi11:08:001:07:535:2817:05
5:30
#129
Half
13.11 mi11:11:421:11:355:283:42
5:25
#129
25K
15.53 mi11:25:011:24:545:2813:19
5:30
#125
30K
18.64 mi11:42:391:42:325:3017:38
5:41
#128
20M
20.00 mi11:51:101:51:035:338:31
6:16
#145
21M
21.00 mi11:57:591:57:525:376:49
6:49
#170
35K
21.75 mi12:02:452:02:385:384:46
6:22
#181
23M
23.00 mi12:12:082:12:015:449:23
7:30
#255
24M
24.00 mi12:19:472:19:405:497:39
7:39
#346
40K
24.85 mi12:26:482:26:415:547:01
8:12
#435
25.2M
25.20 mi12:29:492:29:425:563:01
8:45
#483
Finish
26.22 mi12:37:282:37:216:007:39
7:30
#596
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi149137137133(Top 0.5%)113(Top 0.7%)113(Top 2%)
10K6.21 mi3.10 mi157-8133+4133+4180(Top 0.6%)153(Top 1.0%)153(Top 3%)
15K9.32 mi3.11 mi144+13122+11122+11133(Top 0.5%)113(Top 0.7%)113(Top 2%)
20K12.43 mi3.11 mi129+15109+13109+13133(Top 0.5%)113(Top 0.7%)113(Top 2%)
Half13.11 mi0.68 mi129109109133(Top 0.5%)124(Top 0.8%)124(Top 2%)
25K15.53 mi2.42 mi125+4106+3106+3128(Top 0.5%)111(Top 0.7%)111(Top 2%)
30K18.64 mi3.11 mi128-3108-2108-2157(Top 0.6%)138(Top 0.9%)138(Top 2%)
20M20.00 mi1.36 mi145-17125-17125-17873(Top 3%)824(Top 5%)824(Top 15%)
21M21.00 mi1.00 mi170-25149-24149-241564(Top 6%)1473(Top 9%)1473(Top 26%)
35K21.75 mi0.75 mi181-11159-10159-101852(Top 7%)1736(Top 11%)1736(Top 31%)
23M23.00 mi1.25 mi255-74232-73232-736553(Top 23%)5320(Top 33%)5320(Top 94%)
24M24.00 mi1.00 mi346-91319-87319-878713(Top 31%)6480(Top 40%)6480(Top 115%)
40K24.85 mi0.85 mi435-89401-82401-8211541(Top 41%)7819(Top 49%)7819(Top 139%)
25.2M25.20 mi0.35 mi483-48445-44445-4410162(Top 36%)6986(Top 43%)6986(Top 124%)
Finish26.22 mi1.02 mi596-113550-105550-1059173(Top 32%)6518(Top 40%)6518(Top 116%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.5%
×21stories
+97ft-345ft

Overall

133

Males

113

M18-39

113

5K→10K

3.1 - 6.2 mi

Top 0.6%
×5stories
+79ft-138ft

Overall

180

Males

153

M18-39

153

10K→15K

6.2 - 9.3 mi

Top 0.5%
×3stories
+67ft-78ft

Overall

133

Males

113

M18-39

113

15K→20K

9.3 - 12.4 mi

Top 0.5%
×5stories
+106ft-86ft

Overall

133

Males

113

M18-39

113

20K→Half

12.4 - 13.1 mi

Top 0.5%
×2stories
+19ft-37ft

Overall

133

Males

124

M18-39

124

Half→25K

13.1 - 15.5 mi

Top 0.5%
×4stories
+66ft-88ft

Overall

128

Males

111

M18-39

111

25K→30K

15.5 - 18.6 mi

Top 0.6%
×9stories
+181ft-148ft

Overall

157

Males

138

M18-39

138

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

873

Males

824

M18-39

824

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1564

Males

1473

M18-39

1473

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1852

Males

1736

M18-39

1736

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

6553

Males

5320

M18-39

5320

23M→24M

23.0 - 24.0 mi

Top 31%
×6stories
+12ft-82ft

Overall

8713

Males

6480

M18-39

6480

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

11541

Males

7819

M18-39

7819

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

10162

Males

6986

M18-39

6986

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

9173

Males

6518

M18-39

6518

Passing Analysis

Category:
Athletes Passed
58
Passed By
505
Net Change
-447
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#149
5K → 10K1018-8#149#157
10K → 15K174+13#157#144
15K → 20K194+15#144#129
20K → Half000#129#129
Half → 25K40+4#129#125
25K → 30K47-3#125#128
30K → 20M118-17#128#145
20M → 21M126-25#145#170
21M → 35K011-11#170#181
35K → 23M074-74#181#255
23M → 24M192-91#255#346
24M → 40K089-89#346#435
40K → 25.2M048-48#435#483
25.2M → Finish1114-113#483#596
TOTALS58505-447
📊

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