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BOSTON MARATHON 2025

Chris Ngo

Bib: 7656•M

GA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 23%
Gender (Male)
#0 / 16105
Top 35%
Masters (Masters Men)
#0 / 10463
Top 21%
Division (M45-49)
#0 / 2386
Top 29%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:57
Rank: #8326
Start → 5K
21:57 | 7:04/mi
10K· 6.21 mi
43:38
Rank: #8020 (+306)
5K → 10K
21:41 | 6:59/mi
15K· 9.32 mi
1:05:22
Rank: #7837 (+183)
10K → 15K
21:44 | 7:00/mi
20K· 12.43 mi
1:27:43
Rank: #7883 (-46)
15K → 20K
22:21 | 7:12/mi
Half· 13.11 mi
1:32:23
Rank: #7801 (+82)
20K → Half
4:40 | 6:50/mi
25K· 15.53 mi
1:49:23
Rank: #7526 (+275)
Half → 25K
17:00 | 7:01/mi
30K· 18.64 mi
2:11:54
Rank: #7185 (+341)
25K → 30K
22:31 | 7:15/mi
20M
2:21:46
Rank: #6992 (+193)
30K → 20M
9:52 | 7:16/mi
21M
2:29:29
Rank: #6805 (+187)
20M → 21M
7:43 | 7:43/mi
35K· 21.75 mi
2:34:55
Rank: #6770 (+35)
21M → 35K
5:26 | 7:16/mi
23M
2:44:05
Rank: #6619 (+151)
35K → 23M
9:10 | 7:19/mi
24M
2:51:25
Rank: #6562 (+57)
23M → 24M
7:20 | 7:20/mi
40K· 24.85 mi
2:57:44
Rank: #6504 (+58)
24M → 40K
6:19 | 7:23/mi
25.2M
3:00:29
Rank: #6464 (+40)
40K → 25.2M
2:45 | 7:58/mi
Finish· 26.22 mi
3:07:45
Rank: #6417 (+47)
25.2M → Finish
7:16 | 7:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:23
Pace7:03 /mi
2nd Half
Distance13.11 mi
Time1:35:22
Pace7:16 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:4521:577:0421:57
7:04
-
10K
6.21 mi10:52:2643:387:0121:41
6:59
-0:05
15K
9.32 mi11:14:101:05:227:0121:44
7:00
+0:01
20K
12.43 mi11:36:311:27:437:0322:21
7:12
+0:12
Half
13.11 mi11:41:111:32:237:034:40
6:50
-0:22
25K
15.53 mi11:58:111:49:237:0217:00
7:01
+0:11
30K
18.64 mi12:20:422:11:547:0522:31
7:15
+0:14
20M
20.00 mi12:30:342:21:467:059:52
7:16
+0:01
21M
21.00 mi12:38:172:29:297:077:43
7:43
+0:27
35K
21.75 mi12:43:432:34:557:075:26
7:16
-0:27
23M
23.00 mi12:52:532:44:057:089:10
7:19
+0:03
24M
24.00 mi13:00:132:51:257:097:20
7:20
+0:01
40K
24.85 mi13:06:322:57:447:096:19
7:23
+0:03
25.2M
25.20 mi13:09:173:00:297:102:45
7:58
+0:35
Finish
26.22 mi13:16:333:07:457:107:16
7:08
-0:50

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

6:50 /mi

Average Pace

7:10 /mi

Slowest Pace

7:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:57:17

94% of race

Time at Steady Pace

10:28

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:10 /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 mi10:30:4521:577:0421:57
7:04
#8326
10K
6.21 mi10:52:2643:387:0121:41
6:59
#8020
15K
9.32 mi11:14:101:05:227:0121:44
7:00
#7837
20K
12.43 mi11:36:311:27:437:0322:21
7:12
#7883
Half
13.11 mi11:41:111:32:237:034:40
6:50
#7801
25K
15.53 mi11:58:111:49:237:0217:00
7:01
#7526
30K
18.64 mi12:20:422:11:547:0522:31
7:15
#7185
20M
20.00 mi12:30:342:21:467:059:52
7:16
#6992
21M
21.00 mi12:38:172:29:297:077:43
7:43
#6805
35K
21.75 mi12:43:432:34:557:075:26
7:16
#6770
23M
23.00 mi12:52:532:44:057:089:10
7:19
#6619
24M
24.00 mi13:00:132:51:257:097:20
7:20
#6562
40K
24.85 mi13:06:322:57:447:096:19
7:23
#6504
25.2M
25.20 mi13:09:173:00:297:102:45
7:58
#6464
Finish
26.22 mi13:16:333:07:457:107:16
7:08
#6417
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi8326719771977589(Top 27%)6671(Top 41%)6671(Top 280%)
10K6.21 mi3.10 mi8020+3066996+2016996+2017786(Top 27%)6829(Top 42%)6829(Top 286%)
15K9.32 mi3.11 mi7837+1836871+1256871+1257589(Top 27%)6671(Top 41%)6671(Top 280%)
20K12.43 mi3.11 mi7883-466879-86879-88129(Top 29%)6943(Top 43%)6943(Top 291%)
Half13.11 mi0.68 mi7801+826827+526827+526436(Top 23%)5776(Top 36%)5776(Top 242%)
25K15.53 mi2.42 mi7526+2756625+2026625+2026394(Top 23%)5687(Top 35%)5687(Top 238%)
30K18.64 mi3.11 mi7185+3416338+2876338+2876145(Top 22%)5418(Top 34%)5418(Top 227%)
20M20.00 mi1.36 mi6992+1936171+1676171+1675547(Top 20%)4872(Top 30%)4872(Top 204%)
21M21.00 mi1.00 mi6805+1876013+1586013+1585712(Top 20%)4872(Top 30%)4872(Top 204%)
35K21.75 mi0.75 mi6770+355974+395974+396947(Top 24%)5657(Top 35%)5657(Top 237%)
23M23.00 mi1.25 mi6619+1515828+1465828+1465567(Top 20%)4711(Top 29%)4711(Top 197%)
24M24.00 mi1.00 mi6562+575764+645764+646583(Top 23%)5277(Top 33%)5277(Top 221%)
40K24.85 mi0.85 mi6504+585705+595705+596108(Top 22%)4908(Top 30%)4908(Top 206%)
25.2M25.20 mi0.35 mi6464+405664+415664+415758(Top 20%)4583(Top 28%)4583(Top 192%)
Finish26.22 mi1.02 mi6417+475605+595605+596543(Top 23%)5055(Top 31%)5055(Top 212%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

7589

Males

6671

M45-49

6671

5K→10K

3.1 - 6.2 mi

Top 27%
×5stories
+79ft-138ft

Overall

7786

Males

6829

M45-49

6829

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

7589

Males

6671

M45-49

6671

15K→20K

9.3 - 12.4 mi

Top 29%
×5stories
+106ft-86ft

Overall

8129

Males

6943

M45-49

6943

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6436

Males

5776

M45-49

5776

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

6394

Males

5687

M45-49

5687

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

6145

Males

5418

M45-49

5418

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5547

Males

4872

M45-49

4872

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5712

Males

4872

M45-49

4872

21M→35K

21.0 - 21.8 mi

Top 24%
×7stories
+17ft-86ft

Overall

6947

Males

5657

M45-49

5657

35K→23M

21.8 - 23.0 mi

Top 20%
×5stories
+23ft-63ft

Overall

5567

Males

4711

M45-49

4711

23M→24M

23.0 - 24.0 mi

Top 23%
×6stories
+12ft-82ft

Overall

6583

Males

5277

M45-49

5277

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

6108

Males

4908

M45-49

4908

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5758

Males

4583

M45-49

4583

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

6543

Males

5055

M45-49

5055

Passing Analysis

Category:
Athletes Passed
2461
Passed By
552
Net Change
+1909
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8326
5K → 10K406100+306#8326#8020
10K → 15K24259+183#8020#7837
15K → 20K121167-46#7837#7883
20K → Half864+82#7883#7801
Half → 25K28611+275#7801#7526
25K → 30K37433+341#7526#7185
30K → 20M20512+193#7185#6992
20M → 21M19811+187#6992#6805
21M → 35K5924+35#6805#6770
35K → 23M17524+151#6770#6619
23M → 24M8932+57#6619#6562
24M → 40K8325+58#6562#6504
40K → 25.2M499+40#6504#6464
25.2M → Finish8841+47#6464#6417
TOTALS2461552+1909
📊

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