Boston Marathon logo
BOSTON MARATHON 2025

Michael Serani

Bib: 4853•M

BC

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 7%
Gender (Male)
#0 / 16105
Top 12%
Division (M18-39)
#0 / 5642
Top 29%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:52
Rank: #3063
Start → 5K
19:52 | 6:24/mi
10K· 6.21 mi
39:32
Rank: #2799 (+264)
5K → 10K
19:40 | 6:20/mi
15K· 9.32 mi
59:16
Rank: #2725 (+74)
10K → 15K
19:44 | 6:21/mi
20K· 12.43 mi
1:19:05
Rank: #2624 (+101)
15K → 20K
19:49 | 6:23/mi
Half· 13.11 mi
1:23:24
Rank: #2626 (-2)
20K → Half
4:19 | 6:20/mi
25K· 15.53 mi
1:38:51
Rank: #2536 (+90)
Half → 25K
15:27 | 6:22/mi
30K· 18.64 mi
1:58:58
Rank: #2348 (+188)
25K → 30K
20:07 | 6:28/mi
20M
2:07:58
Rank: #2309 (+39)
30K → 20M
9:00 | 6:37/mi
21M
2:14:53
Rank: #2256 (+53)
20M → 21M
6:55 | 6:55/mi
35K· 21.75 mi
2:19:49
Rank: #2265 (-9)
21M → 35K
4:56 | 6:36/mi
23M
2:28:09
Rank: #2213 (+52)
35K → 23M
8:20 | 6:39/mi
24M
2:34:43
Rank: #2190 (+23)
23M → 24M
6:34 | 6:34/mi
40K· 24.85 mi
2:40:21
Rank: #2159 (+31)
24M → 40K
5:38 | 6:35/mi
25.2M
2:42:50
Rank: #2144 (+15)
40K → 25.2M
2:29 | 7:12/mi
Finish· 26.22 mi
2:48:53
Rank: #2055 (+89)
25.2M → Finish
6:03 | 5:56/mi

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
Time1:23:24
Pace6:22 /mi
2nd Half
Distance13.11 mi
Time1:25:29
Pace6:31 /mi
📊Positive Split: 2.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:5719:526:2419:52
6:24
-
10K
6.21 mi10:43:3739:326:2219:40
6:20
-0:04
15K
9.32 mi11:03:2159:166:2219:44
6:21
+0:01
20K
12.43 mi11:23:101:19:056:2219:49
6:23
+0:02
Half
13.11 mi11:27:291:23:246:224:19
6:20
-0:03
25K
15.53 mi11:42:561:38:516:2215:27
6:22
+0:02
30K
18.64 mi12:03:031:58:586:2320:07
6:28
+0:06
20M
20.00 mi12:12:032:07:586:249:00
6:37
+0:09
21M
21.00 mi12:18:582:14:536:256:55
6:55
+0:18
35K
21.75 mi12:23:542:19:496:264:56
6:36
-0:19
23M
23.00 mi12:32:142:28:096:268:20
6:39
+0:03
24M
24.00 mi12:38:482:34:436:276:34
6:34
-0:05
40K
24.85 mi12:44:262:40:216:275:38
6:35
+0:01
25.2M
25.20 mi12:46:552:42:506:282:29
7:12
+0:37
Finish
26.22 mi12:52:582:48:536:276:03
5:56
-1:16

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

5:56 /mi

Average Pace

6:27 /mi

Slowest Pace

7:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

6:03

4% of race

Time at Steady Pace

2:16:06

81% of race

Time at Slower Pace

26:44

16% of race

Average Pace: 6:26 /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 mi10:23:5719:526:2419:52
6:24
#3063
10K
6.21 mi10:43:3739:326:2219:40
6:20
#2799
15K
9.32 mi11:03:2159:166:2219:44
6:21
#2725
20K
12.43 mi11:23:101:19:056:2219:49
6:23
#2624
Half
13.11 mi11:27:291:23:246:224:19
6:20
#2626
25K
15.53 mi11:42:561:38:516:2215:27
6:22
#2536
30K
18.64 mi12:03:031:58:586:2320:07
6:28
#2348
20M
20.00 mi12:12:032:07:586:249:00
6:37
#2309
21M
21.00 mi12:18:582:14:536:256:55
6:55
#2256
35K
21.75 mi12:23:542:19:496:264:56
6:36
#2265
23M
23.00 mi12:32:142:28:096:268:20
6:39
#2213
24M
24.00 mi12:38:482:34:436:276:34
6:34
#2190
40K
24.85 mi12:44:262:40:216:275:38
6:35
#2159
25.2M
25.20 mi12:46:552:42:506:282:29
7:12
#2144
Finish
26.22 mi12:52:582:48:536:276:03
5:56
#2055
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3063290829082632(Top 9%)2509(Top 16%)2509(Top 44%)
10K6.21 mi3.10 mi2799+2642666+2422666+2422599(Top 9%)2477(Top 15%)2477(Top 44%)
15K9.32 mi3.11 mi2725+742597+692597+692632(Top 9%)2509(Top 16%)2509(Top 44%)
20K12.43 mi3.11 mi2624+1012504+932504+932395(Top 8%)2284(Top 14%)2284(Top 40%)
Half13.11 mi0.68 mi2626-22506-22506-22609(Top 9%)2492(Top 15%)2492(Top 44%)
25K15.53 mi2.42 mi2536+902420+862420+862207(Top 8%)2100(Top 13%)2100(Top 37%)
30K18.64 mi3.11 mi2348+1882242+1782242+1781870(Top 7%)1780(Top 11%)1780(Top 32%)
20M20.00 mi1.36 mi2309+392203+392203+392102(Top 7%)1989(Top 12%)1989(Top 35%)
21M21.00 mi1.00 mi2256+532153+502153+501928(Top 7%)1817(Top 11%)1817(Top 32%)
35K21.75 mi0.75 mi2265-92157-42157-42879(Top 10%)2651(Top 16%)2651(Top 47%)
23M23.00 mi1.25 mi2213+522107+502107+502047(Top 7%)1912(Top 12%)1912(Top 34%)
24M24.00 mi1.00 mi2190+232083+242083+242314(Top 8%)2139(Top 13%)2139(Top 38%)
40K24.85 mi0.85 mi2159+312051+322051+321911(Top 7%)1761(Top 11%)1761(Top 31%)
25.2M25.20 mi0.35 mi2144+152035+162035+162097(Top 7%)1886(Top 12%)1886(Top 33%)
Finish26.22 mi1.02 mi2055+891949+861949+86784(Top 3%)738(Top 5%)738(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2632

Males

2509

M18-39

2509

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2599

Males

2477

M18-39

2477

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2632

Males

2509

M18-39

2509

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2395

Males

2284

M18-39

2284

20K→Half

12.4 - 13.1 mi

Top 9%
×2stories
+19ft-37ft

Overall

2609

Males

2492

M18-39

2492

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2207

Males

2100

M18-39

2100

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1870

Males

1780

M18-39

1780

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

2102

Males

1989

M18-39

1989

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1928

Males

1817

M18-39

1817

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2879

Males

2651

M18-39

2651

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

2047

Males

1912

M18-39

1912

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2314

Males

2139

M18-39

2139

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1911

Males

1761

M18-39

1761

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

2097

Males

1886

M18-39

1886

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

784

Males

738

M18-39

738

Passing Analysis

Category:
Athletes Passed
1292
Passed By
284
Net Change
+1008
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3063
5K → 10K30137+264#3063#2799
10K → 15K11339+74#2799#2725
15K → 20K12625+101#2725#2624
20K → Half1517-2#2624#2626
Half → 25K11020+90#2626#2536
25K → 30K20618+188#2536#2348
30K → 20M5819+39#2348#2309
20M → 21M6714+53#2309#2256
21M → 35K1928-9#2256#2265
35K → 23M7018+52#2265#2213
23M → 24M4320+23#2213#2190
24M → 40K4817+31#2190#2159
40K → 25.2M2510+15#2159#2144
25.2M → Finish912+89#2144#2055
TOTALS1292284+1008
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing