Boston Marathon logo
BOSTON MARATHON 2025

Fabian Katrak

Bib: 29722•M

0:00
0:00
/ mi
Be the first to cheer!
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
8:10/mi
25:22
↑ 97↓ 3451.5%
10K· 6.21 mi
8:07/mi
50:35
↑ 79↓ 1380.4%
15K· 9.32 mi
8:09/mi
1:15:54
↑ 67↓ 78
20K· 12.43 mi
8:30/mi
1:42:20
↑ 106↓ 860.1%
Half· 13.11 mi
8:11/mi
1:47:55
↑ 19↓ 370.5%
25K· 15.53 mi
8:26/mi
2:08:21
↑ 66↓ 880.2%
30K· 18.64 mi
8:46/mi
2:35:35
↑ 181↓ 1480.2%
20M
8:54/mi
2:47:40
↑ 64↓ 500.2%
21M
9:20/mi
2:57:00
↑ 106↓ 241.6%
35K· 21.75 mi
8:29/mi
3:03:21
↑ 17↓ 861.7%
23M
8:54/mi
3:14:29
↑ 23↓ 630.6%
24M
8:51/mi
3:23:20
↓ 821.3%
40K· 24.85 mi
9:07/mi
3:31:08
↓ 200.3%
25.2M
9:52/mi
3:34:32
↑ 13↓ 160.2%
Finish· 26.22 mi
8:28/mi
3:43:10
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:55
Pace8:14 /mi
2nd Half
Distance13.11 mi
Time1:55:15
Pace8:47 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:4025:228:1025:22
8:10
-
10K
6.21 mi12:07:5350:358:0825:13
8:07
-0:03
15K
9.32 mi12:33:121:15:548:0925:19
8:09
+0:02
20K
12.43 mi12:59:381:42:208:1426:26
8:30
+0:21
Half
13.11 mi13:05:131:47:558:145:35
8:11
-0:19
25K
15.53 mi13:25:392:08:218:1620:26
8:26
+0:15
30K
18.64 mi13:52:532:35:358:2127:14
8:46
+0:20
20M
20.00 mi14:04:582:47:408:2312:05
8:54
+0:08
21M
21.00 mi14:14:182:57:008:269:20
9:20
+0:26
35K
21.75 mi14:20:393:03:218:266:21
8:29
-0:51
23M
23.00 mi14:31:473:14:298:2711:08
8:54
+0:25
24M
24.00 mi14:40:383:23:208:288:51
8:51
-0:03
40K
24.85 mi14:48:263:31:088:307:48
9:07
+0:16
25.2M
25.20 mi14:51:503:34:328:313:24
9:52
+0:45
Finish
26.22 mi15:00:283:43:108:318:38
8:28
-1:24

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

8:07 /mi

Average Pace

8:31 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:21:29

37% of race

Time at Steady Pace

1:01:51

28% of race

Time at Slower Pace

1:19:50

36% of race

Average Pace: 8:31 /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 mi11:42:4025:228:1025:22
8:10
#17847
10K
6.21 mi12:07:5350:358:0825:13
8:07
#17568
15K
9.32 mi12:33:121:15:548:0925:19
8:09
#17379
20K
12.43 mi12:59:381:42:208:1426:26
8:30
#17579
Half
13.11 mi13:05:131:47:558:145:35
8:11
#17546
25K
15.53 mi13:25:392:08:218:1620:26
8:26
#17363
30K
18.64 mi13:52:532:35:358:2127:14
8:46
#17120
20M
20.00 mi14:04:582:47:408:2312:05
8:54
#17035
21M
21.00 mi14:14:182:57:008:269:20
9:20
#16878
35K
21.75 mi14:20:393:03:218:266:21
8:29
#16810
23M
23.00 mi14:31:473:14:298:2711:08
8:54
#16715
24M
24.00 mi14:40:383:23:208:288:51
8:51
#16705
40K
24.85 mi14:48:263:31:088:307:48
9:07
#16701
25.2M
25.20 mi14:51:503:34:328:313:24
9:52
#16700
Finish
26.22 mi15:00:283:43:108:318:38
8:28
#16668
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi17847115451154517062(Top 60%)11243(Top 70%)11243(Top 199%)
10K6.21 mi3.10 mi17568+27911435+11011435+11017304(Top 61%)11367(Top 71%)11367(Top 201%)
15K9.32 mi3.11 mi17379+18911388+4711388+4717062(Top 60%)11243(Top 70%)11243(Top 199%)
20K12.43 mi3.11 mi17579-20011442-5411442-5418285(Top 64%)11734(Top 73%)11734(Top 208%)
Half13.11 mi0.68 mi17546+3311437+511437+517134(Top 60%)11235(Top 70%)11235(Top 199%)
25K15.53 mi2.42 mi17363+18311336+10111336+10116727(Top 59%)10977(Top 68%)10977(Top 195%)
30K18.64 mi3.11 mi17120+24311186+15011186+15016383(Top 58%)10659(Top 66%)10659(Top 189%)
20M20.00 mi1.36 mi17035+8511121+6511121+6516170(Top 57%)10430(Top 65%)10430(Top 185%)
21M21.00 mi1.00 mi16878+15711034+8711034+8715300(Top 54%)9915(Top 62%)9915(Top 176%)
35K21.75 mi0.75 mi16810+6810987+4710987+4715367(Top 54%)9883(Top 61%)9883(Top 175%)
23M23.00 mi1.25 mi16715+9510909+7810909+7815628(Top 55%)9910(Top 62%)9910(Top 176%)
24M24.00 mi1.00 mi16705+1010877+3210877+3216572(Top 58%)10287(Top 64%)10287(Top 182%)
40K24.85 mi0.85 mi16701+410842+3510842+3516948(Top 60%)10355(Top 64%)10355(Top 184%)
25.2M25.20 mi0.35 mi16700+110830+1210830+1216344(Top 58%)10054(Top 62%)10054(Top 178%)
Finish26.22 mi1.02 mi16668+3210797+3310797+3316020(Top 56%)9952(Top 62%)9952(Top 176%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21story building
+97ft-345ft

Overall

17062

Males

11243

M18-39

11243

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

17304

Males

11367

M18-39

11367

10K→15K

6.2 - 9.3 mi

Top 60%
×3story building
+67ft-78ft

Overall

17062

Males

11243

M18-39

11243

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

18285

Males

11734

M18-39

11734

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

17134

Males

11235

M18-39

11235

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

16727

Males

10977

M18-39

10977

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

16383

Males

10659

M18-39

10659

30K→20M

18.6 - 20.0 mi

Top 57%
×5story building
+64ft-50ft

Overall

16170

Males

10430

M18-39

10430

20M→21M

20.0 - 21.0 mi

Top 54%
×8story building
+106ft-24ft

Overall

15300

Males

9915

M18-39

9915

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

15367

Males

9883

M18-39

9883

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

15628

Males

9910

M18-39

9910

23M→24M

23.0 - 24.0 mi

Top 58%
×6story building
+12ft-82ft

Overall

16572

Males

10287

M18-39

10287

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

16948

Males

10355

M18-39

10355

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

16344

Males

10054

M18-39

10054

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

16020

Males

9952

M18-39

9952

Passing Analysis

Category:
Athletes Passed
2400
Passed By
1221
Net Change
+1179
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17847
5K → 10K444165+279#17847#17568
10K → 15K307118+189#17568#17379
15K → 20K134334-200#17379#17579
20K → Half5522+33#17579#17546
Half → 25K25168+183#17546#17363
25K → 30K34299+243#17363#17120
30K → 20M13247+85#17120#17035
20M → 21M19336+157#17035#16878
21M → 35K9325+68#16878#16810
35K → 23M15661+95#16810#16715
23M → 24M8474+10#16715#16705
24M → 40K8783+4#16705#16701
40K → 25.2M3433+1#16701#16700
25.2M → Finish8856+32#16700#16668
TOTALS24001221+1179
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing