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BOSTON MARATHON 2025

Gordon Ng

Bib: 11771•M

QC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 49%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
Race Day Weather
50°/40°F
broken 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
7:29/mi
23:16
↑ 97↓ 3451.5%
10K· 6.21 mi
7:28/mi
46:29
↑ 79↓ 1380.4%
15K· 9.32 mi
7:30/mi
1:09:46
↑ 67↓ 78
20K· 12.43 mi
8:00/mi
1:34:38
↑ 106↓ 860.1%
Half· 13.11 mi
7:59/mi
1:40:05
↑ 19↓ 370.5%
25K· 15.53 mi
8:11/mi
1:59:55
↑ 66↓ 880.2%
30K· 18.64 mi
8:43/mi
2:27:01
↑ 181↓ 1480.2%
20M
8:48/mi
2:38:58
↑ 64↓ 500.2%
21M
9:30/mi
2:48:28
↑ 106↓ 241.6%
35K· 21.75 mi
8:04/mi
2:54:30
↑ 17↓ 861.7%
23M
8:26/mi
3:05:04
↑ 23↓ 630.6%
24M
8:19/mi
3:13:23
↓ 821.3%
40K· 24.85 mi
8:36/mi
3:20:44
↓ 200.3%
25.2M
9:14/mi
3:23:55
↑ 13↓ 160.2%
Finish· 26.22 mi
8:12/mi
3:32:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:05
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:52:11
Pace8:33 /mi
📊Positive Split: 12.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:2523:167:2923:16
7:29
-
10K
6.21 mi11:13:3846:297:2923:13
7:28
-0:01
15K
9.32 mi11:36:551:09:467:2923:17
7:30
+0:02
20K
12.43 mi12:01:471:34:387:3724:52
8:00
+0:30
Half
13.11 mi12:07:141:40:057:385:27
7:59
-0:01
25K
15.53 mi12:27:041:59:557:4319:50
8:11
+0:12
30K
18.64 mi12:54:102:27:017:5327:06
8:43
+0:32
20M
20.00 mi13:06:072:38:587:5711:57
8:48
+0:05
21M
21.00 mi13:15:372:48:288:019:30
9:30
+0:42
35K
21.75 mi13:21:392:54:308:016:02
8:04
-1:26
23M
23.00 mi13:32:133:05:048:0310:34
8:26
+0:22
24M
24.00 mi13:40:323:13:238:038:19
8:19
-0:07
40K
24.85 mi13:47:533:20:448:057:21
8:36
+0:17
25.2M
25.20 mi13:51:043:23:558:063:11
9:14
+0:38
Finish
26.22 mi13:59:253:32:168:068:21
8:12
-1:02

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

7:28 /mi

Average Pace

8:06 /mi

Slowest Pace

9:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:09:46

33% of race

Time at Steady Pace

1:23:25

39% of race

Time at Slower Pace

59:05

28% of race

Average Pace: 8:06 /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 mi10:50:2523:167:2923:16
7:29
#12131
10K
6.21 mi11:13:3846:297:2923:13
7:28
#11959
15K
9.32 mi11:36:551:09:467:2923:17
7:30
#11856
20K
12.43 mi12:01:471:34:387:3724:52
8:00
#12610
Half
13.11 mi12:07:141:40:057:385:27
7:59
#12786
25K
15.53 mi12:27:041:59:557:4319:50
8:11
#13184
30K
18.64 mi12:54:102:27:017:5327:06
8:43
#13775
20M
20.00 mi13:06:072:38:587:5711:57
8:48
#13903
21M
21.00 mi13:15:372:48:288:019:30
9:30
#14014
35K
21.75 mi13:21:392:54:308:016:02
8:04
#13951
23M
23.00 mi13:32:133:05:048:0310:34
8:26
#13887
24M
24.00 mi13:40:323:13:238:038:19
8:19
#13856
40K
24.85 mi13:47:533:20:448:057:21
8:36
#13851
25.2M
25.20 mi13:51:043:23:558:063:11
9:14
#13823
Finish
26.22 mi13:59:253:32:168:068:21
8:12
#13824
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi121319235923511716(Top 41%)8941(Top 56%)8941(Top 375%)
10K6.21 mi3.10 mi11959+1729141+949141+9411836(Top 42%)9078(Top 56%)9078(Top 380%)
15K9.32 mi3.11 mi11856+1039077+649077+6411716(Top 41%)8941(Top 56%)8941(Top 375%)
20K12.43 mi3.11 mi12610-7549363-2869363-28614947(Top 53%)10284(Top 64%)10284(Top 431%)
Half13.11 mi0.68 mi12786-1769422-599422-5915730(Top 55%)10648(Top 66%)10648(Top 446%)
25K15.53 mi2.42 mi13184-3989564-1429564-14215153(Top 53%)10290(Top 64%)10290(Top 431%)
30K18.64 mi3.11 mi13775-5919757-1939757-19316115(Top 57%)10543(Top 65%)10543(Top 442%)
20M20.00 mi1.36 mi13903-1289773-169773-1615604(Top 55%)10196(Top 63%)10196(Top 427%)
21M21.00 mi1.00 mi14014-1119799-269799-2616049(Top 57%)10273(Top 64%)10273(Top 431%)
35K21.75 mi0.75 mi13951+639752+479752+4712675(Top 45%)8661(Top 54%)8661(Top 363%)
23M23.00 mi1.25 mi13887+649689+639689+6312914(Top 45%)8660(Top 54%)8660(Top 363%)
24M24.00 mi1.00 mi13856+319637+529637+5213344(Top 47%)8821(Top 55%)8821(Top 370%)
40K24.85 mi0.85 mi13851+59599+389599+3814007(Top 49%)8999(Top 56%)8999(Top 377%)
25.2M25.20 mi0.35 mi13823+289574+259574+2513051(Top 46%)8496(Top 53%)8496(Top 356%)
Finish26.22 mi1.02 mi13824-19562+129562+1214212(Top 50%)9122(Top 57%)9122(Top 382%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

11716

Males

8941

M45-49

8941

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

11836

Males

9078

M45-49

9078

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

11716

Males

8941

M45-49

8941

15K→20K

9.3 - 12.4 mi

Top 53%
×5story building
+106ft-86ft

Overall

14947

Males

10284

M45-49

10284

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

15730

Males

10648

M45-49

10648

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

15153

Males

10290

M45-49

10290

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

16115

Males

10543

M45-49

10543

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

15604

Males

10196

M45-49

10196

20M→21M

20.0 - 21.0 mi

Top 57%
×8story building
+106ft-24ft

Overall

16049

Males

10273

M45-49

10273

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

12675

Males

8661

M45-49

8661

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12914

Males

8660

M45-49

8660

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

13344

Males

8821

M45-49

8821

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

14007

Males

8999

M45-49

8999

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

13051

Males

8496

M45-49

8496

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

14212

Males

9122

M45-49

9122

Passing Analysis

Category:
Athletes Passed
1513
Passed By
3206
Net Change
-1693
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12131
5K → 10K344172+172#12131#11959
10K → 15K223120+103#11959#11856
15K → 20K56810-754#11856#12610
20K → Half3179-176#12610#12786
Half → 25K76474-398#12786#13184
25K → 30K116707-591#13184#13775
30K → 20M83211-128#13775#13903
20M → 21M73184-111#13903#14014
21M → 35K9431+63#14014#13951
35K → 23M14581+64#13951#13887
23M → 24M10372+31#13887#13856
24M → 40K7974+5#13856#13851
40K → 25.2M4921+28#13851#13823
25.2M → Finish6970-1#13823#13824
TOTALS15133206-1693
📊

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