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BOSTON MARATHON 2025

Tyler Greffrath

Bib: 28042•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

Start
0:00:00
Race begins
5K· 3.11 mi
31:23
Rank: #25820
Start → 5K
31:23 | 10:06/mi
10K· 6.21 mi
59:41
Rank: #24465 (+1355)
5K → 10K
28:18 | 9:07/mi
15K· 9.32 mi
1:25:05
Rank: #22825 (+1640)
10K → 15K
25:24 | 8:11/mi
20K· 12.43 mi
1:49:53
Rank: #21135 (+1690)
15K → 20K
24:48 | 7:59/mi
Half· 13.11 mi
1:55:18
Rank: #20899 (+236)
20K → Half
5:25 | 7:56/mi
25K· 15.53 mi
2:14:24
Rank: #19788 (+1111)
Half → 25K
19:06 | 7:53/mi
30K· 18.64 mi
2:39:32
Rank: #18496 (+1292)
25K → 30K
25:08 | 8:05/mi
20M
2:51:05
Rank: #18123 (+373)
30K → 20M
11:33 | 8:30/mi
21M
2:59:33
Rank: #17691 (+432)
20M → 21M
8:28 | 8:28/mi
35K· 21.75 mi
3:05:37
Rank: #17509 (+182)
21M → 35K
6:04 | 8:07/mi
23M
3:15:52
Rank: #17121 (+388)
35K → 23M
10:15 | 8:11/mi
24M
3:24:43
Rank: #17096 (+25)
23M → 24M
8:51 | 8:51/mi
40K· 24.85 mi
3:33:43
Rank: #17400 (-304)
24M → 40K
9:00 | 10:32/mi
25.2M
3:37:04
Rank: #17370 (+30)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
3:45:08
Rank: #17172 (+198)
25.2M → Finish
8:04 | 7:55/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:55:18
Pace8:48 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:49:50
Pace8:23 /mi
📊Negative Split: 4.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:3131:2310:0631:23
10:06
-
10K
6.21 mi12:19:4959:419:3628:18
9:07
-0:59
15K
9.32 mi12:45:131:25:059:0825:24
8:11
-0:56
20K
12.43 mi13:10:011:49:538:5124:48
7:59
-0:12
Half
13.11 mi13:15:261:55:188:485:25
7:56
-0:03
25K
15.53 mi13:34:322:14:248:3919:06
7:53
-0:03
30K
18.64 mi13:59:402:39:328:3325:08
8:05
+0:12
20M
20.00 mi14:11:132:51:058:3311:33
8:30
+0:25
21M
21.00 mi14:19:412:59:338:338:28
8:28
-0:02
35K
21.75 mi14:25:453:05:378:326:04
8:07
-0:21
23M
23.00 mi14:36:003:15:528:3110:15
8:11
+0:04
24M
24.00 mi14:44:513:24:438:328:51
8:51
+0:40
40K
24.85 mi14:53:513:33:438:369:00
10:32
+1:41
25.2M
25.20 mi14:57:123:37:048:373:21
9:43
-0:49
Finish
26.22 mi15:05:163:45:088:368:04
7:55
-1:48

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

7:53 /mi

Average Pace

8:36 /mi

Slowest Pace

10:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:24:15

64% of race

Time at Slower Pace

1:20:53

36% of race

Average Pace: 8:35 /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 mi11:51:3131:2310:0631:23
10:06
#25820
10K
6.21 mi12:19:4959:419:3628:18
9:07
#24465
15K
9.32 mi12:45:131:25:059:0825:24
8:11
#22825
20K
12.43 mi13:10:011:49:538:5124:48
7:59
#21135
Half
13.11 mi13:15:261:55:188:485:25
7:56
#20899
25K
15.53 mi13:34:322:14:248:3919:06
7:53
#19788
30K
18.64 mi13:59:402:39:328:3325:08
8:05
#18496
20M
20.00 mi14:11:132:51:058:3311:33
8:30
#18123
21M
21.00 mi14:19:412:59:338:338:28
8:28
#17691
35K
21.75 mi14:25:453:05:378:326:04
8:07
#17509
23M
23.00 mi14:36:003:15:528:3110:15
8:11
#17121
24M
24.00 mi14:44:513:24:438:328:51
8:51
#17096
40K
24.85 mi14:53:513:33:438:369:00
10:32
#17400
25.2M
25.20 mi14:57:123:37:048:373:21
9:43
#17370
Finish
26.22 mi15:05:163:45:088:368:04
7:55
#17172
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25820151001510017224(Top 61%)11310(Top 70%)11310(Top 200%)
10K6.21 mi3.10 mi24465+135514472+62814472+62822852(Top 80%)13742(Top 85%)13742(Top 244%)
15K9.32 mi3.11 mi22825+164013738+73413738+73417224(Top 61%)11310(Top 70%)11310(Top 200%)
20K12.43 mi3.11 mi21135+169012971+76712971+76714789(Top 52%)10226(Top 63%)10226(Top 181%)
Half13.11 mi0.68 mi20899+23612862+10912862+10915395(Top 54%)10532(Top 65%)10532(Top 187%)
25K15.53 mi2.42 mi19788+111112370+49212370+49212954(Top 46%)9280(Top 58%)9280(Top 164%)
30K18.64 mi3.11 mi18496+129211785+58511785+58512022(Top 42%)8691(Top 54%)8691(Top 154%)
20M20.00 mi1.36 mi18123+37311586+19911586+19913780(Top 49%)9353(Top 58%)9353(Top 166%)
21M21.00 mi1.00 mi17691+43211378+20811378+20810246(Top 36%)7496(Top 47%)7496(Top 133%)
35K21.75 mi0.75 mi17509+18211269+10911269+10912989(Top 46%)8813(Top 55%)8813(Top 156%)
23M23.00 mi1.25 mi17121+38811067+20211067+20211283(Top 40%)7895(Top 49%)7895(Top 140%)
24M24.00 mi1.00 mi17096+2511037+3011037+3016573(Top 58%)10288(Top 64%)10288(Top 182%)
40K24.85 mi0.85 mi17400-30411136-9911136-9921990(Top 77%)12738(Top 79%)12738(Top 226%)
25.2M25.20 mi0.35 mi17370+3011113+2311113+2315649(Top 55%)9715(Top 60%)9715(Top 172%)
Finish26.22 mi1.02 mi17172+19811007+10611007+10612291(Top 43%)8194(Top 51%)8194(Top 145%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

17224

Males

11310

M18-39

11310

5K→10K

3.1 - 6.2 mi

Top 80%
×5stories
+79ft-138ft

Overall

22852

Males

13742

M18-39

13742

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

17224

Males

11310

M18-39

11310

15K→20K

9.3 - 12.4 mi

Top 52%
×5stories
+106ft-86ft

Overall

14789

Males

10226

M18-39

10226

20K→Half

12.4 - 13.1 mi

Top 54%
×2stories
+19ft-37ft

Overall

15395

Males

10532

M18-39

10532

Half→25K

13.1 - 15.5 mi

Top 46%
×4stories
+66ft-88ft

Overall

12954

Males

9280

M18-39

9280

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

12022

Males

8691

M18-39

8691

30K→20M

18.6 - 20.0 mi

Top 49%
×5stories
+64ft-50ft

Overall

13780

Males

9353

M18-39

9353

20M→21M

20.0 - 21.0 mi

Top 36%
×8stories
+106ft-24ft

Overall

10246

Males

7496

M18-39

7496

21M→35K

21.0 - 21.8 mi

Top 46%
×7stories
+17ft-86ft

Overall

12989

Males

8813

M18-39

8813

35K→23M

21.8 - 23.0 mi

Top 40%
×5stories
+23ft-63ft

Overall

11283

Males

7895

M18-39

7895

23M→24M

23.0 - 24.0 mi

Top 58%
×6stories
+12ft-82ft

Overall

16573

Males

10288

M18-39

10288

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

21990

Males

12738

M18-39

12738

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15649

Males

9715

M18-39

9715

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2stories
+22ft-21ft

Overall

12291

Males

8194

M18-39

8194

Passing Analysis

Category:
Athletes Passed
9066
Passed By
418
Net Change
+8648
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25820
5K → 10K13561+1355#25820#24465
10K → 15K16400+1640#24465#22825
15K → 20K16900+1690#22825#21135
20K → Half2371+236#21135#20899
Half → 25K11110+1111#20899#19788
25K → 30K12920+1292#19788#18496
30K → 20M3741+373#18496#18123
20M → 21M4320+432#18123#17691
21M → 35K1853+182#17691#17509
35K → 23M3902+388#17509#17121
23M → 24M9368+25#17121#17096
24M → 40K17321-304#17096#17400
40K → 25.2M4818+30#17400#17370
25.2M → Finish2013+198#17370#17172
TOTALS9066418+8648
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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