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BOSTON MARATHON 2025

Robert Baker

Bib: 31420•M

MA

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
8:59/mi
27:56
↑ 97↓ 3451.5%
10K· 6.21 mi
8:59/mi
55:51
↑ 79↓ 1380.4%
15K· 9.32 mi
8:58/mi
1:23:43
↑ 67↓ 78
20K· 12.43 mi
8:55/mi
1:51:24
↑ 106↓ 860.1%
Half· 13.11 mi
8:54/mi
1:57:28
↑ 19↓ 370.5%
25K· 15.53 mi
9:53/mi
2:21:25
↑ 66↓ 880.2%
30K· 18.64 mi
9:38/mi
2:51:20
↑ 181↓ 1480.2%
20M
10:37/mi
3:05:46
↑ 64↓ 500.2%
21M
10:56/mi
3:16:42
↑ 106↓ 241.6%
35K· 21.75 mi
10:18/mi
3:24:24
↑ 17↓ 861.7%
23M
10:30/mi
3:37:33
↑ 23↓ 630.6%
24M
10:26/mi
3:47:59
↓ 821.3%
40K· 24.85 mi
10:32/mi
3:56:59
↓ 200.3%
25.2M
11:30/mi
4:00:57
↑ 13↓ 160.2%
Finish· 26.22 mi
9:50/mi
4:10:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:28
Pace8:58 /mi
2nd Half
Distance13.11 mi
Time2:13:30
Pace10:11 /mi
📊Positive Split: 13.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:0727:568:5927:56
8:59
-
10K
6.21 mi12:21:0255:518:5927:56
8:59
0:00
15K
9.32 mi12:48:541:23:438:5927:52
8:58
-0:01
20K
12.43 mi13:16:351:51:248:5827:41
8:55
-0:03
Half
13.11 mi13:22:391:57:288:586:04
8:54
-0:01
25K
15.53 mi13:46:362:21:259:0623:57
9:53
+0:59
30K
18.64 mi14:16:312:51:209:1129:55
9:38
-0:15
20M
20.00 mi14:30:573:05:469:1714:26
10:37
+0:59
21M
21.00 mi14:41:533:16:429:2210:56
10:56
+0:19
35K
21.75 mi14:49:353:24:249:247:42
10:18
-0:38
23M
23.00 mi15:02:443:37:339:2813:09
10:30
+0:12
24M
24.00 mi15:13:103:47:599:3010:26
10:26
-0:04
40K
24.85 mi15:22:103:56:599:329:00
10:32
+0:06
25.2M
25.20 mi15:26:084:00:579:343:58
11:30
+0:58
Finish
26.22 mi15:36:094:10:589:3510:01
9:50
-1:40

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

8:54 /mi

Average Pace

9:35 /mi

Slowest Pace

11:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:28

47% of race

Time at Steady Pace

1:03:53

25% of race

Time at Slower Pace

1:09:37

28% of race

Average Pace: 9:34 /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 mi11:53:0727:568:5927:56
8:59
#22367
10K
6.21 mi12:21:0255:518:5927:56
8:59
#22379
15K
9.32 mi12:48:541:23:438:5927:52
8:58
#22202
20K
12.43 mi13:16:351:51:248:5827:41
8:55
#21770
Half
13.11 mi13:22:391:57:288:586:04
8:54
#21740
25K
15.53 mi13:46:362:21:259:0623:57
9:53
#22013
30K
18.64 mi14:16:312:51:209:1129:55
9:38
#21709
20M
20.00 mi14:30:573:05:469:1714:26
10:37
#21820
21M
21.00 mi14:41:533:16:429:2210:56
10:56
#21785
35K
21.75 mi14:49:353:24:249:247:42
10:18
#21826
23M
23.00 mi15:02:443:37:339:2813:09
10:30
#21814
24M
24.00 mi15:13:103:47:599:3010:26
10:26
#21850
40K
24.85 mi15:22:103:56:599:329:00
10:32
#21856
25.2M
25.20 mi15:26:084:00:579:343:58
11:30
#21850
Finish
26.22 mi15:36:094:10:589:3510:01
9:50
#21851
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22367134671346721890(Top 77%)13348(Top 83%)13348(Top 237%)
10K6.21 mi3.10 mi22379-1213492-2513492-2522336(Top 79%)13493(Top 84%)13493(Top 239%)
15K9.32 mi3.11 mi22202+17713441+5113441+5121890(Top 77%)13348(Top 83%)13348(Top 237%)
20K12.43 mi3.11 mi21770+43213232+20913232+20920528(Top 72%)12685(Top 79%)12685(Top 225%)
Half13.11 mi0.68 mi21740+3013221+1113221+1121331(Top 75%)13061(Top 81%)13061(Top 231%)
25K15.53 mi2.42 mi22013-27313340-11913340-11922957(Top 81%)13727(Top 85%)13727(Top 243%)
30K18.64 mi3.11 mi21709+30413188+15213188+15220470(Top 72%)12499(Top 78%)12499(Top 222%)
20M20.00 mi1.36 mi21820-11113227-3913227-3922742(Top 80%)13406(Top 83%)13406(Top 238%)
21M21.00 mi1.00 mi21785+3513181+4613181+4621208(Top 75%)12595(Top 78%)12595(Top 223%)
35K21.75 mi0.75 mi21826-4113186-513186-522656(Top 80%)13230(Top 82%)13230(Top 234%)
23M23.00 mi1.25 mi21814+1213142+4413142+4422025(Top 78%)12888(Top 80%)12888(Top 228%)
24M24.00 mi1.00 mi21850-3613137+513137+522625(Top 80%)13124(Top 81%)13124(Top 233%)
40K24.85 mi0.85 mi21856-613118+1913118+1921997(Top 77%)12745(Top 79%)12745(Top 226%)
25.2M25.20 mi0.35 mi21850+613110+813110+822029(Top 78%)12804(Top 80%)12804(Top 227%)
Finish26.22 mi1.02 mi21851-113092+1813092+1822373(Top 79%)12956(Top 80%)12956(Top 230%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

21890

Males

13348

M18-39

13348

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

22336

Males

13493

M18-39

13493

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

21890

Males

13348

M18-39

13348

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

20528

Males

12685

M18-39

12685

20K→Half

12.4 - 13.1 mi

Top 75%
×2story building
+19ft-37ft

Overall

21331

Males

13061

M18-39

13061

Half→25K

13.1 - 15.5 mi

Top 81%
×4story building
+66ft-88ft

Overall

22957

Males

13727

M18-39

13727

25K→30K

15.5 - 18.6 mi

Top 72%
×9story building
+181ft-148ft

Overall

20470

Males

12499

M18-39

12499

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

22742

Males

13406

M18-39

13406

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

21208

Males

12595

M18-39

12595

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

22656

Males

13230

M18-39

13230

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

22025

Males

12888

M18-39

12888

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

22625

Males

13124

M18-39

13124

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

21997

Males

12745

M18-39

12745

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22029

Males

12804

M18-39

12804

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2story building
+22ft-21ft

Overall

22373

Males

12956

M18-39

12956

Passing Analysis

Category:
Athletes Passed
1898
Passed By
1382
Net Change
+516
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22367
5K → 10K254266-12#22367#22379
10K → 15K27598+177#22379#22202
15K → 20K44917+432#22202#21770
20K → Half5222+30#21770#21740
Half → 25K74347-273#21740#22013
25K → 30K36763+304#22013#21709
30K → 20M51162-111#21709#21820
20M → 21M10065+35#21820#21785
21M → 35K3374-41#21785#21826
35K → 23M8674+12#21826#21814
23M → 24M4076-36#21814#21850
24M → 40K4753-6#21850#21856
40K → 25.2M2721+6#21856#21850
25.2M → Finish4344-1#21850#21851
TOTALS18981382+516
📊

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