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BOSTON MARATHON 2025

Simon Gitau

Bib: 26768•M

MA

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

Start
0:00:00
Race begins
5K· 3.11 mi
24:51
Rank: #16577
Start → 5K
8:00/mi
24:51 split
10K· 6.21 mi
50:12
Rank: #17104 (-527)
5K → 10K
8:10/mi
25:21 split
15K· 9.32 mi
1:17:45
Rank: #18667 (-1563)
10K → 15K
8:52/mi
27:33 split
20K· 12.43 mi
1:47:57
Rank: #20328 (-1661)
15K → 20K
9:43/mi
30:12 split
Half· 13.11 mi
1:54:15
Rank: #20497 (-169)
20K → Half
9:14/mi
6:18 split
25K· 15.53 mi
2:19:28
Rank: #21463 (-966)
Half → 25K
10:24/mi
25:13 split
30K· 18.64 mi
2:55:17
Rank: #22500 (-1037)
25K → 30K
11:32/mi
35:49 split
20M
3:10:17
Rank: #22605 (-105)
30K → 20M
11:02/mi
15:00 split
21M
3:21:51
Rank: #22603 (+2)
20M → 21M
11:34/mi
11:34 split
35K· 21.75 mi
3:30:13
Rank: #22689 (-86)
21M → 35K
11:11/mi
8:22 split
23M
3:44:18
Rank: #22764 (-75)
35K → 23M
11:15/mi
14:05 split
24M
3:54:55
Rank: #22750 (+14)
23M → 24M
10:37/mi
10:37 split
40K· 24.85 mi
4:04:38
Rank: #22800 (-50)
24M → 40K
11:22/mi
9:43 split
25.2M
4:08:37
Rank: #22794 (+6)
40K → 25.2M
11:33/mi
3:59 split
Finish· 26.22 mi
4:18:40
Rank: #22786 (+8)
25.2M → Finish
9:52/mi
10:03 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:15
Pace8:43 /mi
2nd Half
Distance13.11 mi
Time2:24:25
Pace11:01 /mi
📊Positive Split: 26.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:40:2524:518:0024:51
8:00
-
10K
6.21 mi12:05:4650:128:0525:21
8:10
+0:10
15K
9.32 mi12:33:191:17:458:2127:33
8:52
+0:42
20K
12.43 mi13:03:311:47:578:4130:12
9:43
+0:51
Half
13.11 mi13:09:491:54:158:436:18
9:14
-0:29
25K
15.53 mi13:35:022:19:288:5925:13
10:24
+1:10
30K
18.64 mi14:10:512:55:179:2435:49
11:32
+1:08
20M
20.00 mi14:25:513:10:179:3115:00
11:02
-0:30
21M
21.00 mi14:37:253:21:519:3711:34
11:34
+0:32
35K
21.75 mi14:45:473:30:139:408:22
11:11
-0:23
23M
23.00 mi14:59:523:44:189:4514:05
11:15
+0:04
24M
24.00 mi15:10:293:54:559:4710:37
10:37
-0:38
40K
24.85 mi15:20:124:04:389:519:43
11:22
+0:45
25.2M
25.20 mi15:24:114:08:379:523:59
11:33
+0:11
Finish
26.22 mi15:34:144:18:409:5210:03
9:52
-1:41

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

8:00 /mi

Average Pace

9:52 /mi

Slowest Pace

11:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:18

48% of race

Time at Steady Pace

59:12

23% of race

Time at Slower Pace

1:15:10

29% of race

Average Pace: 9:52 /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 mi11:40:2524:518:0024:51
8:00
#16577
10K
6.21 mi12:05:4650:128:0525:21
8:10
#17104
15K
9.32 mi12:33:191:17:458:2127:33
8:52
#18667
20K
12.43 mi13:03:311:47:578:4130:12
9:43
#20328
Half
13.11 mi13:09:491:54:158:436:18
9:14
#20497
25K
15.53 mi13:35:022:19:288:5925:13
10:24
#21463
30K
18.64 mi14:10:512:55:179:2435:49
11:32
#22500
20M
20.00 mi14:25:513:10:179:3115:00
11:02
#22605
21M
21.00 mi14:37:253:21:519:3711:34
11:34
#22603
35K
21.75 mi14:45:473:30:139:408:22
11:11
#22689
23M
23.00 mi14:59:523:44:189:4514:05
11:15
#22764
24M
24.00 mi15:10:293:54:559:4710:37
10:37
#22750
40K
24.85 mi15:20:124:04:389:519:43
11:22
#22800
25.2M
25.20 mi15:24:114:08:379:523:59
11:33
#22794
Finish
26.22 mi15:34:144:18:409:5210:03
9:52
#22786
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi16577110321103221380(Top 75%)13121(Top 81%)13121(Top 796%)
10K6.21 mi3.10 mi17104-52711268-23611268-23617613(Top 62%)11499(Top 71%)11499(Top 698%)
15K9.32 mi3.11 mi18667-156311902-63411902-63421380(Top 75%)13121(Top 81%)13121(Top 796%)
20K12.43 mi3.11 mi20328-166112607-70512607-70523539(Top 83%)14030(Top 87%)14030(Top 851%)
Half13.11 mi0.68 mi20497-16912681-7412681-7422712(Top 80%)13659(Top 85%)13659(Top 829%)
25K15.53 mi2.42 mi21463-96613103-42213103-42224171(Top 85%)14272(Top 89%)14272(Top 866%)
30K18.64 mi3.11 mi22500-103713527-42413527-42424883(Top 88%)14476(Top 90%)14476(Top 878%)
20M20.00 mi1.36 mi22605-10513552-2513552-2523660(Top 83%)13826(Top 86%)13826(Top 839%)
21M21.00 mi1.00 mi22603+213538+1413538+1422741(Top 80%)13319(Top 83%)13319(Top 808%)
35K21.75 mi0.75 mi22689-8613560-2213560-2224572(Top 87%)14139(Top 88%)14139(Top 858%)
23M23.00 mi1.25 mi22764-7513568-813568-823765(Top 84%)13715(Top 85%)13715(Top 832%)
24M24.00 mi1.00 mi22750+1413545+2313545+2323113(Top 81%)13365(Top 83%)13365(Top 811%)
40K24.85 mi0.85 mi22800-5013543+213543+223885(Top 84%)13713(Top 85%)13713(Top 832%)
25.2M25.20 mi0.35 mi22794+613534+913534+922169(Top 78%)12874(Top 80%)12874(Top 781%)
Finish26.22 mi1.02 mi22786+813513+2113513+2122495(Top 79%)13027(Top 81%)13027(Top 790%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

21380

Males

13121

M55-59

13121

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

17613

Males

11499

M55-59

11499

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

21380

Males

13121

M55-59

13121

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

23539

Males

14030

M55-59

14030

20K→Half

12.4 - 13.1 mi

Top 80%
×2story building
+19ft-37ft

Overall

22712

Males

13659

M55-59

13659

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

24171

Males

14272

M55-59

14272

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

24883

Males

14476

M55-59

14476

30K→20M

18.6 - 20.0 mi

Top 83%
×5story building
+64ft-50ft

Overall

23660

Males

13826

M55-59

13826

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

22741

Males

13319

M55-59

13319

21M→35K

21.0 - 21.8 mi

Top 87%
×7story building
+17ft-86ft

Overall

24572

Males

14139

M55-59

14139

35K→23M

21.8 - 23.0 mi

Top 84%
×5story building
+23ft-63ft

Overall

23765

Males

13715

M55-59

13715

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

23113

Males

13365

M55-59

13365

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

23885

Males

13713

M55-59

13713

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22169

Males

12874

M55-59

12874

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2story building
+22ft-21ft

Overall

22495

Males

13027

M55-59

13027

Passing Analysis

Category:
Athletes Passed
577
Passed By
6786
Net Change
-6209
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16577
5K → 10K131658-527#16577#17104
10K → 15K131576-1563#17104#18667
15K → 20K151676-1661#18667#20328
20K → Half7176-169#20328#20497
Half → 25K18984-966#20497#21463
25K → 30K311068-1037#21463#22500
30K → 20M44149-105#22500#22605
20M → 21M7977+2#22605#22603
21M → 35K26112-86#22603#22689
35K → 23M50125-75#22689#22764
23M → 24M5541+14#22764#22750
24M → 40K3585-50#22750#22800
40K → 25.2M2418+6#22800#22794
25.2M → Finish4941+8#22794#22786
TOTALS5776786-6209
📊

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