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BOSTON MARATHON 2025

Bradley Geilfuss

Bib: 5526•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 20%
Gender (Male)
#0 / 16105
Top 31%
Masters (Masters Men)
#0 / 10463
Top 17%
Division (M50-54)
#0 / 1996
Top 12%
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
6:50/mi
21:13
↑ 97↓ 3451.5%
10K· 6.21 mi
6:47/mi
42:19
↑ 79↓ 1380.4%
15K· 9.32 mi
6:42/mi
1:03:07
↑ 67↓ 78
20K· 12.43 mi
7:04/mi
1:25:04
↑ 106↓ 860.1%
Half· 13.11 mi
6:39/mi
1:29:36
↑ 19↓ 370.5%
25K· 15.53 mi
6:47/mi
1:46:03
↑ 66↓ 880.2%
30K· 18.64 mi
6:52/mi
2:07:23
↑ 181↓ 1480.2%
20M
6:59/mi
2:16:52
↑ 64↓ 500.2%
21M
7:27/mi
2:24:19
↑ 106↓ 241.6%
35K· 21.75 mi
7:26/mi
2:29:53
↑ 17↓ 861.7%
23M
7:44/mi
2:39:34
↑ 23↓ 630.6%
24M
7:38/mi
2:47:12
↓ 821.3%
40K· 24.85 mi
7:42/mi
2:53:47
↓ 200.3%
25.2M
8:27/mi
2:56:42
↑ 13↓ 160.2%
Finish· 26.22 mi
7:46/mi
3:04:37
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:36
Pace6:50 /mi
2nd Half
Distance13.11 mi
Time1:35:01
Pace7:15 /mi
📊Positive Split: 6.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:2421:136:5021:13
6:50
-
10K
6.21 mi10:47:3042:196:4921:06
6:47
-0:03
15K
9.32 mi11:08:181:03:076:4620:48
6:42
-0:05
20K
12.43 mi11:30:151:25:046:5121:57
7:04
+0:22
Half
13.11 mi11:34:471:29:366:504:32
6:39
-0:25
25K
15.53 mi11:51:141:46:036:5016:27
6:47
+0:08
30K
18.64 mi12:12:342:07:236:5021:20
6:52
+0:05
20M
20.00 mi12:22:032:16:526:519:29
6:59
+0:07
21M
21.00 mi12:29:302:24:196:527:27
7:27
+0:28
35K
21.75 mi12:35:042:29:536:545:34
7:26
-0:01
23M
23.00 mi12:44:452:39:346:569:41
7:44
+0:18
24M
24.00 mi12:52:232:47:126:587:38
7:38
-0:06
40K
24.85 mi12:58:582:53:477:006:35
7:42
+0:04
25.2M
25.20 mi13:01:532:56:427:012:55
8:27
+0:45
Finish
26.22 mi13:09:483:04:377:037:55
7:46
-0:41

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

6:39 /mi

Average Pace

7:03 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:02:53

34% of race

Time at Steady Pace

1:13:59

40% of race

Time at Slower Pace

47:45

26% of race

Average Pace: 7:02 /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 mi10:26:2421:136:5021:13
6:50
#6558
10K
6.21 mi10:47:3042:196:4921:06
6:47
#6404
15K
9.32 mi11:08:181:03:076:4620:48
6:42
#5920
20K
12.43 mi11:30:151:25:046:5121:57
7:04
#6360
Half
13.11 mi11:34:471:29:366:504:32
6:39
#6272
25K
15.53 mi11:51:141:46:036:5016:27
6:47
#5948
30K
18.64 mi12:12:342:07:236:5021:20
6:52
#5457
20M
20.00 mi12:22:032:16:526:519:29
6:59
#5305
21M
21.00 mi12:29:302:24:196:527:27
7:27
#5212
35K
21.75 mi12:35:042:29:536:545:34
7:26
#5318
23M
23.00 mi12:44:452:39:346:569:41
7:44
#5430
24M
24.00 mi12:52:232:47:126:587:38
7:38
#5496
40K
24.85 mi12:58:582:53:477:006:35
7:42
#5527
25.2M
25.20 mi13:01:532:56:427:012:55
8:27
#5534
Finish
26.22 mi13:09:483:04:377:037:55
7:46
#5653
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi6558596559655035(Top 18%)4680(Top 29%)4680(Top 234%)
10K6.21 mi3.10 mi6404+1545841+1245841+1246310(Top 22%)5733(Top 36%)5733(Top 287%)
15K9.32 mi3.11 mi5920+4845429+4125429+4125035(Top 18%)4680(Top 29%)4680(Top 234%)
20K12.43 mi3.11 mi6360-4405769-3405769-3407284(Top 26%)6405(Top 40%)6405(Top 321%)
Half13.11 mi0.68 mi6272+885692+775692+774860(Top 17%)4520(Top 28%)4520(Top 226%)
25K15.53 mi2.42 mi5948+3245415+2775415+2774771(Top 17%)4394(Top 27%)4394(Top 220%)
30K18.64 mi3.11 mi5457+4915005+4105005+4103870(Top 14%)3574(Top 22%)3574(Top 179%)
20M20.00 mi1.36 mi5305+1524861+1444861+1444007(Top 14%)3675(Top 23%)3675(Top 184%)
21M21.00 mi1.00 mi5212+934780+814780+814374(Top 15%)3918(Top 24%)3918(Top 196%)
35K21.75 mi0.75 mi5318-1064862-824862-828165(Top 29%)6388(Top 40%)6388(Top 320%)
23M23.00 mi1.25 mi5430-1124940-784940-788081(Top 28%)6206(Top 39%)6206(Top 311%)
24M24.00 mi1.00 mi5496-664978-384978-388609(Top 30%)6429(Top 40%)6429(Top 322%)
40K24.85 mi0.85 mi5527-314988-104988-108051(Top 28%)6013(Top 37%)6013(Top 301%)
25.2M25.20 mi0.35 mi5534-74985+34985+38477(Top 30%)6162(Top 38%)6162(Top 309%)
Finish26.22 mi1.02 mi5653-1195062-775062-7711169(Top 39%)7587(Top 47%)7587(Top 380%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21story building
+97ft-345ft

Overall

5035

Males

4680

M50-54

4680

5K→10K

3.1 - 6.2 mi

Top 22%
×5story building
+79ft-138ft

Overall

6310

Males

5733

M50-54

5733

10K→15K

6.2 - 9.3 mi

Top 18%
×3story building
+67ft-78ft

Overall

5035

Males

4680

M50-54

4680

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

7284

Males

6405

M50-54

6405

20K→Half

12.4 - 13.1 mi

Top 17%
×2story building
+19ft-37ft

Overall

4860

Males

4520

M50-54

4520

Half→25K

13.1 - 15.5 mi

Top 17%
×4story building
+66ft-88ft

Overall

4771

Males

4394

M50-54

4394

25K→30K

15.5 - 18.6 mi

Top 14%
×9story building
+181ft-148ft

Overall

3870

Males

3574

M50-54

3574

30K→20M

18.6 - 20.0 mi

Top 14%
×5story building
+64ft-50ft

Overall

4007

Males

3675

M50-54

3675

20M→21M

20.0 - 21.0 mi

Top 15%
×8story building
+106ft-24ft

Overall

4374

Males

3918

M50-54

3918

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

8165

Males

6388

M50-54

6388

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

8081

Males

6206

M50-54

6206

23M→24M

23.0 - 24.0 mi

Top 30%
×6story building
+12ft-82ft

Overall

8609

Males

6429

M50-54

6429

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

8051

Males

6013

M50-54

6013

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8477

Males

6162

M50-54

6162

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

11169

Males

7587

M50-54

7587

Passing Analysis

Category:
Athletes Passed
2208
Passed By
1303
Net Change
+905
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6558
5K → 10K256102+154#6558#6404
10K → 15K49612+484#6404#5920
15K → 20K61501-440#5920#6360
20K → Half913+88#6360#6272
Half → 25K3273+324#6272#5948
25K → 30K4976+491#5948#5457
30K → 20M16513+152#5457#5305
20M → 21M13138+93#5305#5212
21M → 35K22128-106#5212#5318
35K → 23M52164-112#5318#5430
23M → 24M2692-66#5430#5496
24M → 40K4172-31#5496#5527
40K → 25.2M2431-7#5527#5534
25.2M → Finish19138-119#5534#5653
TOTALS22081303+905
📊

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