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BOSTON MARATHON 2025

Guillermo Romero

Bib: 18926•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
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
9:18/mi
28:55
↑ 97↓ 3451.5%
10K· 6.21 mi
9:34/mi
58:38
↑ 79↓ 1380.4%
15K· 9.32 mi
9:53/mi
1:29:20
↑ 67↓ 78
20K· 12.43 mi
10:35/mi
2:02:12
↑ 106↓ 860.1%
Half· 13.11 mi
10:11/mi
2:09:09
↑ 19↓ 370.5%
25K· 15.53 mi
10:21/mi
2:34:14
↑ 66↓ 880.2%
30K· 18.64 mi
10:58/mi
3:08:18
↑ 181↓ 1480.2%
20M
10:39/mi
3:22:46
↑ 64↓ 500.2%
21M
11:04/mi
3:33:50
↑ 106↓ 241.6%
35K· 21.75 mi
10:55/mi
3:42:00
↑ 17↓ 861.7%
23M
10:11/mi
3:54:45
↑ 23↓ 630.6%
24M
9:47/mi
4:04:32
↓ 821.3%
40K· 24.85 mi
9:49/mi
4:12:56
↓ 200.3%
25.2M
11:13/mi
4:16:48
↑ 13↓ 160.2%
Finish· 26.22 mi
9:43/mi
4:26:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:09
Pace9:51 /mi
2nd Half
Distance13.11 mi
Time2:17:33
Pace10:30 /mi
📊Positive Split: 6.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:0128:559:1828:55
9:18
-
10K
6.21 mi11:51:4458:389:2629:43
9:34
+0:16
15K
9.32 mi12:22:261:29:209:3530:42
9:53
+0:19
20K
12.43 mi12:55:182:02:129:5032:52
10:35
+0:42
Half
13.11 mi13:02:152:09:099:516:57
10:11
-0:24
25K
15.53 mi13:27:202:34:149:5625:05
10:21
+0:10
30K
18.64 mi14:01:243:08:1810:0634:04
10:58
+0:37
20M
20.00 mi14:15:523:22:4610:0814:28
10:39
-0:19
21M
21.00 mi14:26:563:33:5010:1111:04
11:04
+0:25
35K
21.75 mi14:35:063:42:0010:128:10
10:55
-0:09
23M
23.00 mi14:47:513:54:4510:1212:45
10:11
-0:44
24M
24.00 mi14:57:384:04:3210:119:47
9:47
-0:24
40K
24.85 mi15:06:024:12:5610:118:24
9:49
+0:02
25.2M
25.20 mi15:09:544:16:4810:113:52
11:13
+1:24
Finish
26.22 mi15:19:484:26:4210:119:54
9:43
-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

9:18 /mi

Average Pace

10:11 /mi

Slowest Pace

11:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:25

44% of race

Time at Steady Pace

44:47

17% of race

Time at Slower Pace

1:44:30

39% of race

Average Pace: 10:10 /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 mi11:22:0128:559:1828:55
9:18
#23579
10K
6.21 mi11:51:4458:389:2629:43
9:34
#23995
15K
9.32 mi12:22:261:29:209:3530:42
9:53
#24274
20K
12.43 mi12:55:182:02:129:5032:52
10:35
#24605
Half
13.11 mi13:02:152:09:099:516:57
10:11
#24636
25K
15.53 mi13:27:202:34:149:5625:05
10:21
#24566
30K
18.64 mi14:01:243:08:1810:0634:04
10:58
#24450
20M
20.00 mi14:15:523:22:4610:0814:28
10:39
#24339
21M
21.00 mi14:26:563:33:5010:1111:04
11:04
#24189
35K
21.75 mi14:35:063:42:0010:128:10
10:55
#24186
23M
23.00 mi14:47:513:54:4510:1212:45
10:11
#24019
24M
24.00 mi14:57:384:04:3210:119:47
9:47
#23883
40K
24.85 mi15:06:024:12:5610:118:24
9:49
#23755
25.2M
25.20 mi15:09:544:16:4810:113:52
11:13
#23734
Finish
26.22 mi15:19:484:26:4210:119:54
9:43
#23677
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi23579140371403724728(Top 87%)14593(Top 91%)14593(Top 885%)
10K6.21 mi3.10 mi23995-41614250-21314250-21324265(Top 85%)14361(Top 89%)14361(Top 871%)
15K9.32 mi3.11 mi24274-27914384-13414384-13424728(Top 87%)14593(Top 91%)14593(Top 885%)
20K12.43 mi3.11 mi24605-33114517-13314517-13325323(Top 89%)14818(Top 92%)14818(Top 899%)
Half13.11 mi0.68 mi24636-3114532-1514532-1525220(Top 89%)14763(Top 92%)14763(Top 896%)
25K15.53 mi2.42 mi24566+7014491+4114491+4124058(Top 85%)14221(Top 88%)14221(Top 863%)
30K18.64 mi3.11 mi24450+11614414+7714414+7723946(Top 84%)14044(Top 87%)14044(Top 852%)
20M20.00 mi1.36 mi24339+11114348+6614348+6622811(Top 80%)13433(Top 83%)13433(Top 815%)
21M21.00 mi1.00 mi24189+15014260+8814260+8821583(Top 76%)12777(Top 79%)12777(Top 775%)
35K21.75 mi0.75 mi24186+314251+914251+924023(Top 85%)13889(Top 86%)13889(Top 843%)
23M23.00 mi1.25 mi24019+16714153+9814153+9821059(Top 74%)12420(Top 77%)12420(Top 754%)
24M24.00 mi1.00 mi23883+13614073+8014073+8020673(Top 73%)12194(Top 76%)12194(Top 740%)
40K24.85 mi0.85 mi23755+12813996+7713996+7719891(Top 70%)11753(Top 73%)11753(Top 713%)
25.2M25.20 mi0.35 mi23734+2113983+1313983+1321265(Top 75%)12427(Top 77%)12427(Top 754%)
Finish26.22 mi1.02 mi23677+5713942+4113942+4121971(Top 77%)12776(Top 79%)12776(Top 775%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

24728

Males

14593

M55-59

14593

5K→10K

3.1 - 6.2 mi

Top 85%
×5story building
+79ft-138ft

Overall

24265

Males

14361

M55-59

14361

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

24728

Males

14593

M55-59

14593

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

25323

Males

14818

M55-59

14818

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

25220

Males

14763

M55-59

14763

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

24058

Males

14221

M55-59

14221

25K→30K

15.5 - 18.6 mi

Top 84%
×9story building
+181ft-148ft

Overall

23946

Males

14044

M55-59

14044

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

22811

Males

13433

M55-59

13433

20M→21M

20.0 - 21.0 mi

Top 76%
×8story building
+106ft-24ft

Overall

21583

Males

12777

M55-59

12777

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

24023

Males

13889

M55-59

13889

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

21059

Males

12420

M55-59

12420

23M→24M

23.0 - 24.0 mi

Top 73%
×6story building
+12ft-82ft

Overall

20673

Males

12194

M55-59

12194

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

19891

Males

11753

M55-59

11753

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

21265

Males

12427

M55-59

12427

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

21971

Males

12776

M55-59

12776

Passing Analysis

Category:
Athletes Passed
1412
Passed By
1510
Net Change
-98
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23579
5K → 10K101517-416#23579#23995
10K → 15K63342-279#23995#24274
15K → 20K55386-331#24274#24605
20K → Half1647-31#24605#24636
Half → 25K13565+70#24636#24566
25K → 30K18670+116#24566#24450
30K → 20M12716+111#24450#24339
20M → 21M16010+150#24339#24189
21M → 35K3431+3#24189#24186
35K → 23M1725+167#24186#24019
23M → 24M1393+136#24019#23883
24M → 40K1313+128#23883#23755
40K → 25.2M254+21#23755#23734
25.2M → Finish6811+57#23734#23677
TOTALS14121510-98
📊

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