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BOSTON MARATHON 2025

Thomas Golden

Bib: 1520•M

WA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
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
6:41/mi
20:46
↑ 97↓ 3451.5%
10K· 6.21 mi
6:46/mi
41:46
↑ 79↓ 1380.4%
15K· 9.32 mi
6:51/mi
1:03:03
↑ 67↓ 78
20K· 12.43 mi
8:26/mi
1:29:15
↑ 106↓ 860.1%
Half· 13.11 mi
7:12/mi
1:34:10
↑ 19↓ 370.5%
25K· 15.53 mi
9:05/mi
1:56:11
↑ 66↓ 880.2%
30K· 18.64 mi
9:47/mi
2:26:35
↑ 181↓ 1480.2%
20M
9:52/mi
2:39:59
↑ 64↓ 500.2%
21M
9:49/mi
2:49:48
↑ 106↓ 241.6%
35K· 21.75 mi
8:59/mi
2:56:31
↑ 17↓ 861.7%
23M
8:55/mi
3:07:41
↑ 23↓ 630.6%
24M
9:30/mi
3:17:11
↓ 821.3%
40K· 24.85 mi
8:56/mi
3:24:49
↓ 200.3%
25.2M
8:07/mi
3:27:37
↑ 13↓ 160.2%
Finish· 26.22 mi
7:37/mi
3:35:23
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:10
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time2:01:13
Pace9:15 /mi
📊Positive Split: 28.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:2020:466:4120:46
6:41
-
10K
6.21 mi10:42:2041:466:4321:00
6:46
+0:05
15K
9.32 mi11:03:371:03:036:4621:17
6:51
+0:05
20K
12.43 mi11:29:491:29:157:1126:12
8:26
+1:35
Half
13.11 mi11:34:441:34:107:114:55
7:12
-1:14
25K
15.53 mi11:56:451:56:117:2922:01
9:05
+1:53
30K
18.64 mi12:27:092:26:357:5230:24
9:47
+0:42
20M
20.00 mi12:40:332:39:598:0013:24
9:52
+0:05
21M
21.00 mi12:50:222:49:488:059:49
9:49
-0:03
35K
21.75 mi12:57:052:56:318:076:43
8:59
-0:50
23M
23.00 mi13:08:153:07:418:1011:10
8:55
-0:04
24M
24.00 mi13:17:453:17:118:139:30
9:30
+0:35
40K
24.85 mi13:25:233:24:498:147:38
8:56
-0:34
25.2M
25.20 mi13:28:113:27:378:142:48
8:07
-0:49
Finish
26.22 mi13:35:573:35:238:137:46
7:37
-0:30

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

6:41 /mi

Average Pace

8:13 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:18:32

36% of race

Time at Steady Pace

1:13:44

34% of race

Time at Slower Pace

1:03:07

29% of race

Average Pace: 8:13 /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 mi10:21:2020:466:4120:46
6:41
#5317
10K
6.21 mi10:42:2041:466:4321:00
6:46
#5590
15K
9.32 mi11:03:371:03:036:4621:17
6:51
#5871
20K
12.43 mi11:29:491:29:157:1126:12
8:26
#8812
Half
13.11 mi11:34:441:34:107:114:55
7:12
#8825
25K
15.53 mi11:56:451:56:117:2922:01
9:05
#11162
30K
18.64 mi12:27:092:26:357:5230:24
9:47
#13589
20M
20.00 mi12:40:332:39:598:0013:24
9:52
#14317
21M
21.00 mi12:50:222:49:488:059:49
9:49
#14559
35K
21.75 mi12:57:052:56:318:076:43
8:59
#14688
23M
23.00 mi13:08:153:07:418:1011:10
8:55
#14735
24M
24.00 mi13:17:453:17:118:139:30
9:30
#14993
40K
24.85 mi13:25:233:24:498:147:38
8:56
#15040
25.2M
25.20 mi13:28:113:27:378:142:48
8:07
#14867
Finish
26.22 mi13:35:573:35:238:137:46
7:37
#14652
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5317494849486596(Top 23%)5947(Top 37%)5947(Top 105%)
10K6.21 mi3.10 mi5590-2735168-2205168-2205974(Top 21%)5468(Top 34%)5468(Top 97%)
15K9.32 mi3.11 mi5871-2815389-2215389-2216596(Top 23%)5947(Top 37%)5947(Top 105%)
20K12.43 mi3.11 mi8812-29417454-20657454-206517742(Top 62%)11499(Top 71%)11499(Top 204%)
Half13.11 mi0.68 mi8825-137455-17455-19153(Top 32%)7585(Top 47%)7585(Top 134%)
25K15.53 mi2.42 mi11162-23378656-12018656-120120253(Top 71%)12520(Top 78%)12520(Top 222%)
30K18.64 mi3.11 mi13589-24279677-10219677-102120943(Top 74%)12688(Top 79%)12688(Top 225%)
20M20.00 mi1.36 mi14317-7289966-2899966-28920474(Top 72%)12352(Top 77%)12352(Top 219%)
21M21.00 mi1.00 mi14559-24210041-7510041-7517525(Top 62%)10929(Top 68%)10929(Top 194%)
35K21.75 mi0.75 mi14688-12910086-4510086-4518091(Top 64%)11081(Top 69%)11081(Top 196%)
23M23.00 mi1.25 mi14735-4710073+1310073+1315770(Top 56%)9969(Top 62%)9969(Top 177%)
24M24.00 mi1.00 mi14993-25810152-7910152-7919611(Top 69%)11671(Top 72%)11671(Top 207%)
40K24.85 mi0.85 mi15040-4710138+1410138+1415878(Top 56%)9854(Top 61%)9854(Top 175%)
25.2M25.20 mi0.35 mi14867+17310060+7810060+786618(Top 23%)5147(Top 32%)5147(Top 91%)
Finish26.22 mi1.02 mi14652+2159935+1259935+12510109(Top 36%)7046(Top 44%)7046(Top 125%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21story building
+97ft-345ft

Overall

6596

Males

5947

M18-39

5947

5K→10K

3.1 - 6.2 mi

Top 21%
×5story building
+79ft-138ft

Overall

5974

Males

5468

M18-39

5468

10K→15K

6.2 - 9.3 mi

Top 23%
×3story building
+67ft-78ft

Overall

6596

Males

5947

M18-39

5947

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

17742

Males

11499

M18-39

11499

20K→Half

12.4 - 13.1 mi

Top 32%
×2story building
+19ft-37ft

Overall

9153

Males

7585

M18-39

7585

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

20253

Males

12520

M18-39

12520

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

20943

Males

12688

M18-39

12688

30K→20M

18.6 - 20.0 mi

Top 72%
×5story building
+64ft-50ft

Overall

20474

Males

12352

M18-39

12352

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

17525

Males

10929

M18-39

10929

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

18091

Males

11081

M18-39

11081

35K→23M

21.8 - 23.0 mi

Top 56%
×5story building
+23ft-63ft

Overall

15770

Males

9969

M18-39

9969

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

19611

Males

11671

M18-39

11671

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15878

Males

9854

M18-39

9854

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6618

Males

5147

M18-39

5147

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2story building
+22ft-21ft

Overall

10109

Males

7046

M18-39

7046

Passing Analysis

Category:
Athletes Passed
870
Passed By
10203
Net Change
-9335
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5317
5K → 10K78351-273#5317#5590
10K → 15K64345-281#5590#5871
15K → 20K22943-2941#5871#8812
20K → Half2639-13#8812#8825
Half → 25K112346-2337#8825#11162
25K → 30K122439-2427#11162#13589
30K → 20M26754-728#13589#14317
20M → 21M55297-242#14317#14559
21M → 35K40169-129#14559#14688
35K → 23M85132-47#14688#14735
23M → 24M34292-258#14735#14993
24M → 40K4996-47#14993#15040
40K → 25.2M1730+173#15040#14867
25.2M → Finish2150+215#14867#14652
TOTALS87010203-9335
📊

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