Boston Marathon logo
BOSTON MARATHON 2025

Phil Shin

Bib: 13452•M

CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 42%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 45%
Division (M50-54)
#0 / 1996
Top 48%
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
7:43/mi
24:00
↑ 97↓ 3451.5%
10K· 6.21 mi
7:44/mi
48:03
↑ 79↓ 1380.4%
15K· 9.32 mi
7:46/mi
1:12:11
↑ 67↓ 78
20K· 12.43 mi
7:43/mi
1:36:10
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:41:26
↑ 19↓ 370.5%
25K· 15.53 mi
7:54/mi
2:00:35
↑ 66↓ 880.2%
30K· 18.64 mi
8:02/mi
2:25:32
↑ 181↓ 1480.2%
20M
8:03/mi
2:36:28
↑ 64↓ 500.2%
21M
8:08/mi
2:44:36
↑ 106↓ 241.6%
35K· 21.75 mi
8:08/mi
2:50:41
↑ 17↓ 861.7%
23M
7:53/mi
3:00:33
↑ 23↓ 630.6%
24M
7:53/mi
3:08:25
↓ 821.3%
40K· 24.85 mi
7:57/mi
3:15:13
↓ 200.3%
25.2M
8:48/mi
3:18:15
↑ 13↓ 160.2%
Finish· 26.22 mi
7:45/mi
3:26:09
↑ 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
Time1:41:26
Pace7:44 /mi
2nd Half
Distance13.11 mi
Time1:44:43
Pace7:59 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:58:4324:007:4324:00
7:43
-
10K
6.21 mi11:22:4648:037:4424:03
7:44
+0:01
15K
9.32 mi11:46:541:12:117:4524:08
7:46
+0:02
20K
12.43 mi12:10:531:36:107:4423:59
7:43
-0:03
Half
13.11 mi12:16:091:41:267:445:16
7:43
0:00
25K
15.53 mi12:35:182:00:357:4619:09
7:54
+0:11
30K
18.64 mi13:00:152:25:327:4824:57
8:02
+0:08
20M
20.00 mi13:11:112:36:287:4910:56
8:03
+0:01
21M
21.00 mi13:19:192:44:367:508:08
8:08
+0:05
35K
21.75 mi13:25:242:50:417:516:05
8:08
0:00
23M
23.00 mi13:35:163:00:337:519:52
7:53
-0:15
24M
24.00 mi13:43:083:08:257:517:52
7:53
0:00
40K
24.85 mi13:49:563:15:137:516:48
7:57
+0:04
25.2M
25.20 mi13:52:583:18:157:523:02
8:48
+0:51
Finish
26.22 mi14:00:523:26:097:527:54
7:45
-1:03

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

7:43 /mi

Average Pace

7:52 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:23:07

99% of race

Time at Steady Pace

3:02

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:52 /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 mi10:58:4324:007:4324:00
7:43
#14161
10K
6.21 mi11:22:4648:037:4424:03
7:44
#14168
15K
9.32 mi11:46:541:12:117:4524:08
7:46
#14143
20K
12.43 mi12:10:531:36:107:4423:59
7:43
#13701
Half
13.11 mi12:16:091:41:267:445:16
7:43
#13686
25K
15.53 mi12:35:182:00:357:4619:09
7:54
#13546
30K
18.64 mi13:00:152:25:327:4824:57
8:02
#13152
20M
20.00 mi13:11:112:36:287:4910:56
8:03
#12930
21M
21.00 mi13:19:192:44:367:508:08
8:08
#12604
35K
21.75 mi13:25:242:50:417:516:05
8:08
#12602
23M
23.00 mi13:35:163:00:337:519:52
7:53
#12347
24M
24.00 mi13:43:083:08:257:517:52
7:53
#12257
40K
24.85 mi13:49:563:15:137:516:48
7:57
#12132
25.2M
25.20 mi13:52:583:18:157:523:02
8:48
#12088
Finish
26.22 mi14:00:523:26:097:527:54
7:45
#12035
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi14161101041010414073(Top 50%)9967(Top 62%)9967(Top 499%)
10K6.21 mi3.10 mi14168-710086+1810086+1814238(Top 50%)10093(Top 63%)10093(Top 506%)
15K9.32 mi3.11 mi14143+2510044+4210044+4214073(Top 50%)9967(Top 62%)9967(Top 499%)
20K12.43 mi3.11 mi13701+4429818+2269818+22612583(Top 44%)9232(Top 57%)9232(Top 463%)
Half13.11 mi0.68 mi13686+159804+149804+1413474(Top 47%)9662(Top 60%)9662(Top 484%)
25K15.53 mi2.42 mi13546+1409718+869718+8613062(Top 46%)9318(Top 58%)9318(Top 467%)
30K18.64 mi3.11 mi13152+3949475+2439475+24311607(Top 41%)8481(Top 53%)8481(Top 425%)
20M20.00 mi1.36 mi12930+2229351+1249351+12410737(Top 38%)7914(Top 49%)7914(Top 396%)
21M21.00 mi1.00 mi12604+3269181+1709181+1708105(Top 29%)6298(Top 39%)6298(Top 316%)
35K21.75 mi0.75 mi12602+29153+289153+2813219(Top 47%)8881(Top 55%)8881(Top 445%)
23M23.00 mi1.25 mi12347+2558997+1568997+1569101(Top 32%)6759(Top 42%)6759(Top 339%)
24M24.00 mi1.00 mi12257+908926+718926+7110384(Top 37%)7351(Top 46%)7351(Top 368%)
40K24.85 mi0.85 mi12132+1258832+948832+949838(Top 35%)6973(Top 43%)6973(Top 349%)
25.2M25.20 mi0.35 mi12088+448786+468786+4610570(Top 37%)7262(Top 45%)7262(Top 364%)
Finish26.22 mi1.02 mi12035+538742+448742+4411072(Top 39%)7549(Top 47%)7549(Top 378%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

14073

Males

9967

M50-54

9967

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

14238

Males

10093

M50-54

10093

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

14073

Males

9967

M50-54

9967

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

12583

Males

9232

M50-54

9232

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

13474

Males

9662

M50-54

9662

Half→25K

13.1 - 15.5 mi

Top 46%
×4story building
+66ft-88ft

Overall

13062

Males

9318

M50-54

9318

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

11607

Males

8481

M50-54

8481

30K→20M

18.6 - 20.0 mi

Top 38%
×5story building
+64ft-50ft

Overall

10737

Males

7914

M50-54

7914

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

8105

Males

6298

M50-54

6298

21M→35K

21.0 - 21.8 mi

Top 47%
×7story building
+17ft-86ft

Overall

13219

Males

8881

M50-54

8881

35K→23M

21.8 - 23.0 mi

Top 32%
×5story building
+23ft-63ft

Overall

9101

Males

6759

M50-54

6759

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

10384

Males

7351

M50-54

7351

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9838

Males

6973

M50-54

6973

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

10570

Males

7262

M50-54

7262

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

11072

Males

7549

M50-54

7549

Passing Analysis

Category:
Athletes Passed
2997
Passed By
871
Net Change
+2126
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14161
5K → 10K268275-7#14161#14168
10K → 15K211186+25#14168#14143
15K → 20K47230+442#14143#13701
20K → Half3924+15#13701#13686
Half → 25K243103+140#13686#13546
25K → 30K45662+394#13546#13152
30K → 20M24119+222#13152#12930
20M → 21M3282+326#12930#12604
21M → 35K6361+2#12604#12602
35K → 23M2638+255#12602#12347
23M → 24M12333+90#12347#12257
24M → 40K13611+125#12257#12132
40K → 25.2M5915+44#12132#12088
25.2M → Finish9542+53#12088#12035
TOTALS2997871+2126
📊

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