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BOSTON MARATHON 2025

Eric Thomas

Bib: 9663•M

AL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
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
8:08/mi
25:16
↑ 97↓ 3451.5%
10K· 6.21 mi
8:25/mi
51:24
↑ 79↓ 1380.4%
15K· 9.32 mi
8:24/mi
1:17:30
↑ 67↓ 78
20K· 12.43 mi
8:20/mi
1:43:23
↑ 106↓ 860.1%
Half· 13.11 mi
8:23/mi
1:49:06
↑ 19↓ 370.5%
25K· 15.53 mi
8:19/mi
2:09:15
↑ 66↓ 880.2%
30K· 18.64 mi
8:21/mi
2:35:13
↑ 181↓ 1480.2%
20M
8:12/mi
2:46:22
↑ 64↓ 500.2%
21M
8:14/mi
2:54:36
↑ 106↓ 241.6%
35K· 21.75 mi
8:07/mi
3:00:40
↑ 17↓ 861.7%
23M
7:46/mi
3:10:24
↑ 23↓ 630.6%
24M
8:02/mi
3:18:26
↓ 821.3%
40K· 24.85 mi
8:11/mi
3:25:26
↓ 200.3%
25.2M
8:51/mi
3:28:29
↑ 13↓ 160.2%
Finish· 26.22 mi
7:21/mi
3:35:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:49:06
Pace8:19 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:46:52
Pace8:09 /mi
📊Negative Split: 2.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:5325:168:0825:16
8:08
-
10K
6.21 mi11:22:0151:248:1626:08
8:25
+0:17
15K
9.32 mi11:48:071:17:308:1926:06
8:24
-0:01
20K
12.43 mi12:14:001:43:238:1925:53
8:20
-0:04
Half
13.11 mi12:19:431:49:068:195:43
8:23
+0:03
25K
15.53 mi12:39:522:09:158:1920:09
8:19
-0:04
30K
18.64 mi13:05:502:35:138:2025:58
8:21
+0:02
20M
20.00 mi13:16:592:46:228:1911:09
8:12
-0:09
21M
21.00 mi13:25:132:54:368:198:14
8:14
+0:02
35K
21.75 mi13:31:173:00:408:186:04
8:07
-0:07
23M
23.00 mi13:41:013:10:248:179:44
7:46
-0:21
24M
24.00 mi13:49:033:18:268:168:02
8:02
+0:16
40K
24.85 mi13:56:033:25:268:167:00
8:11
+0:09
25.2M
25.20 mi13:59:063:28:298:163:03
8:51
+0:40
Finish
26.22 mi14:06:353:35:588:157:29
7:21
-1:30

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

7:21 /mi

Average Pace

8:15 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

25:15

12% of race

Time at Steady Pace

2:15:26

63% of race

Time at Slower Pace

55:17

26% of race

Average Pace: 8:14 /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 mi10:55:5325:168:0825:16
8:08
#17579
10K
6.21 mi11:22:0151:248:1626:08
8:25
#18439
15K
9.32 mi11:48:071:17:308:1926:06
8:24
#18485
20K
12.43 mi12:14:001:43:238:1925:53
8:20
#18119
Half
13.11 mi12:19:431:49:068:195:43
8:23
#18111
25K
15.53 mi12:39:522:09:158:1920:09
8:19
#17712
30K
18.64 mi13:05:502:35:138:2025:58
8:21
#16989
20M
20.00 mi13:16:592:46:228:1911:09
8:12
#16623
21M
21.00 mi13:25:132:54:368:198:14
8:14
#16171
35K
21.75 mi13:31:173:00:408:186:04
8:07
#16024
23M
23.00 mi13:41:013:10:248:179:44
7:46
#15575
24M
24.00 mi13:49:033:18:268:168:02
8:02
#15370
40K
24.85 mi13:56:033:25:268:167:00
8:11
#15205
25.2M
25.20 mi13:59:063:28:298:163:03
8:51
#15114
Finish
26.22 mi14:06:353:35:588:157:29
7:21
#14823
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi17579114421144218700(Top 66%)11920(Top 74%)11920(Top 500%)
10K6.21 mi3.10 mi18439-86011805-36311805-36319249(Top 68%)12163(Top 76%)12163(Top 510%)
15K9.32 mi3.11 mi18485-4611815-1011815-1018700(Top 66%)11920(Top 74%)11920(Top 500%)
20K12.43 mi3.11 mi18119+36611658+15711658+15717097(Top 60%)11222(Top 70%)11222(Top 470%)
Half13.11 mi0.68 mi18111+811655+311655+318409(Top 65%)11771(Top 73%)11771(Top 493%)
25K15.53 mi2.42 mi17712+39911477+17811477+17815968(Top 56%)10626(Top 66%)10626(Top 445%)
30K18.64 mi3.11 mi16989+72311128+34911128+34913880(Top 49%)9544(Top 59%)9544(Top 400%)
20M20.00 mi1.36 mi16623+36610953+17510953+17511837(Top 42%)8451(Top 52%)8451(Top 354%)
21M21.00 mi1.00 mi16171+45210733+22010733+2208793(Top 31%)6712(Top 42%)6712(Top 281%)
35K21.75 mi0.75 mi16024+14710644+8910644+8912980(Top 46%)8804(Top 55%)8804(Top 369%)
23M23.00 mi1.25 mi15575+44910416+22810416+2288406(Top 30%)6402(Top 40%)6402(Top 268%)
24M24.00 mi1.00 mi15370+20510304+11210304+11211488(Top 40%)7909(Top 49%)7909(Top 331%)
40K24.85 mi0.85 mi15205+16510200+10410200+10411474(Top 40%)7809(Top 48%)7809(Top 327%)
25.2M25.20 mi0.35 mi15114+9110150+5010150+5010904(Top 38%)7457(Top 46%)7457(Top 313%)
Finish26.22 mi1.02 mi14823+29110010+14010010+1408078(Top 28%)5963(Top 37%)5963(Top 250%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21story building
+97ft-345ft

Overall

18700

Males

11920

M45-49

11920

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

19249

Males

12163

M45-49

12163

10K→15K

6.2 - 9.3 mi

Top 66%
×3story building
+67ft-78ft

Overall

18700

Males

11920

M45-49

11920

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

17097

Males

11222

M45-49

11222

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

18409

Males

11771

M45-49

11771

Half→25K

13.1 - 15.5 mi

Top 56%
×4story building
+66ft-88ft

Overall

15968

Males

10626

M45-49

10626

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

13880

Males

9544

M45-49

9544

30K→20M

18.6 - 20.0 mi

Top 42%
×5story building
+64ft-50ft

Overall

11837

Males

8451

M45-49

8451

20M→21M

20.0 - 21.0 mi

Top 31%
×8story building
+106ft-24ft

Overall

8793

Males

6712

M45-49

6712

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

12980

Males

8804

M45-49

8804

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

8406

Males

6402

M45-49

6402

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

11488

Males

7909

M45-49

7909

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11474

Males

7809

M45-49

7809

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10904

Males

7457

M45-49

7457

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2story building
+22ft-21ft

Overall

8078

Males

5963

M45-49

5963

Passing Analysis

Category:
Athletes Passed
4014
Passed By
1258
Net Change
+2756
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17579
5K → 10K59919-860#17579#18439
10K → 15K174220-46#18439#18485
15K → 20K40236+366#18485#18119
20K → Half4133+8#18119#18111
Half → 25K41516+399#18111#17712
25K → 30K7329+723#17712#16989
30K → 20M3682+366#16989#16623
20M → 21M4520+452#16623#16171
21M → 35K1558+147#16171#16024
35K → 23M4501+449#16024#15575
23M → 24M2094+205#15575#15370
24M → 40K1694+165#15370#15205
40K → 25.2M932+91#15205#15114
25.2M → Finish2954+291#15114#14823
TOTALS40141258+2756
📊

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