Boston Marathon logo
BOSTON MARATHON 2025

Liam Row

Bib: 1869•M

IN

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
19:38
Rank: #2550
Start → 5K
19:38 | 6:19/mi
10K· 6.21 mi
38:35
Rank: #1920 (+630)
5K → 10K
18:57 | 6:06/mi
15K· 9.32 mi
57:30
Rank: #1696 (+224)
10K → 15K
18:55 | 6:05/mi
20K· 12.43 mi
1:16:41
Rank: #1628 (+68)
15K → 20K
19:11 | 6:10/mi
Half· 13.11 mi
1:20:49
Rank: #1604 (+24)
20K → Half
4:08 | 6:03/mi
25K· 15.53 mi
1:35:54
Rank: #1566 (+38)
Half → 25K
15:05 | 6:13/mi
30K· 18.64 mi
1:56:06
Rank: #1611 (-45)
25K → 30K
20:12 | 6:30/mi
20M
2:05:21
Rank: #1680 (-69)
30K → 20M
9:15 | 6:48/mi
21M
2:13:00
Rank: #1823 (-143)
20M → 21M
7:39 | 7:39/mi
35K· 21.75 mi
2:18:08
Rank: #1883 (-60)
21M → 35K
5:08 | 6:52/mi
23M
2:27:00
Rank: #1986 (-103)
35K → 23M
8:52 | 7:05/mi
24M
2:33:52
Rank: #2011 (-25)
23M → 24M
6:52 | 6:52/mi
40K· 24.85 mi
2:39:47
Rank: #2038 (-27)
24M → 40K
5:55 | 6:55/mi
25.2M
2:42:21
Rank: #2041 (-3)
40K → 25.2M
2:34 | 7:27/mi
Finish· 26.22 mi
2:49:01
Rank: #2081 (-40)
25.2M → Finish
6:40 | 6:33/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
Time1:20:49
Pace6:10 /mi
2nd Half
Distance13.11 mi
Time1:28:12
Pace6:44 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:2019:386:1919:38
6:19
-
10K
6.21 mi10:39:1738:356:1318:57
6:06
-0:13
15K
9.32 mi10:58:1257:306:1018:55
6:05
-0:01
20K
12.43 mi11:17:231:16:416:1019:11
6:10
+0:05
Half
13.11 mi11:21:311:20:496:104:08
6:03
-0:07
25K
15.53 mi11:36:361:35:546:1015:05
6:13
+0:10
30K
18.64 mi11:56:481:56:066:1420:12
6:30
+0:17
20M
20.00 mi12:06:032:05:216:169:15
6:48
+0:18
21M
21.00 mi12:13:422:13:006:207:39
7:39
+0:51
35K
21.75 mi12:18:502:18:086:215:08
6:52
-0:47
23M
23.00 mi12:27:422:27:006:238:52
7:05
+0:13
24M
24.00 mi12:34:342:33:526:256:52
6:52
-0:13
40K
24.85 mi12:40:292:39:476:265:55
6:55
+0:03
25.2M
25.20 mi12:43:032:42:216:272:34
7:27
+0:32
Finish
26.22 mi12:49:432:49:016:276:40
6:33
-0:54

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

6:03 /mi

Average Pace

6:27 /mi

Slowest Pace

7:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:16:16

45% of race

Time at Steady Pace

46:30

28% of race

Time at Slower Pace

46:15

27% of race

Average Pace: 6:27 /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 mi10:20:2019:386:1919:38
6:19
#2550
10K
6.21 mi10:39:1738:356:1318:57
6:06
#1920
15K
9.32 mi10:58:1257:306:1018:55
6:05
#1696
20K
12.43 mi11:17:231:16:416:1019:11
6:10
#1628
Half
13.11 mi11:21:311:20:496:104:08
6:03
#1604
25K
15.53 mi11:36:361:35:546:1015:05
6:13
#1566
30K
18.64 mi11:56:481:56:066:1420:12
6:30
#1611
20M
20.00 mi12:06:032:05:216:169:15
6:48
#1680
21M
21.00 mi12:13:422:13:006:207:39
7:39
#1823
35K
21.75 mi12:18:502:18:086:215:08
6:52
#1883
23M
23.00 mi12:27:422:27:006:238:52
7:05
#1986
24M
24.00 mi12:34:342:33:526:256:52
6:52
#2011
40K
24.85 mi12:40:292:39:476:265:55
6:55
#2038
25.2M
25.20 mi12:43:032:42:216:272:34
7:27
#2041
Finish
26.22 mi12:49:432:49:016:276:40
6:33
#2081
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2550242624261329(Top 5%)1262(Top 8%)1262(Top 22%)
10K6.21 mi3.10 mi1920+6301828+5981828+5981464(Top 5%)1391(Top 9%)1391(Top 25%)
15K9.32 mi3.11 mi1696+2241612+2161612+2161329(Top 5%)1262(Top 8%)1262(Top 22%)
20K12.43 mi3.11 mi1628+681545+671545+671478(Top 5%)1400(Top 9%)1400(Top 25%)
Half13.11 mi0.68 mi1604+241521+241521+241387(Top 5%)1319(Top 8%)1319(Top 23%)
25K15.53 mi2.42 mi1566+381484+371484+371546(Top 5%)1468(Top 9%)1468(Top 26%)
30K18.64 mi3.11 mi1611-451528-441528-441989(Top 7%)1891(Top 12%)1891(Top 34%)
20M20.00 mi1.36 mi1680-691595-671595-672935(Top 10%)2734(Top 17%)2734(Top 48%)
21M21.00 mi1.00 mi1823-1431733-1381733-1385344(Top 19%)4614(Top 29%)4614(Top 82%)
35K21.75 mi0.75 mi1883-601788-551788-554429(Top 16%)3931(Top 24%)3931(Top 70%)
23M23.00 mi1.25 mi1986-1031886-981886-984202(Top 15%)3731(Top 23%)3731(Top 66%)
24M24.00 mi1.00 mi2011-251908-221908-223862(Top 14%)3415(Top 21%)3415(Top 61%)
40K24.85 mi0.85 mi2038-271934-261934-263412(Top 12%)3031(Top 19%)3031(Top 54%)
25.2M25.20 mi0.35 mi2041-31936-21936-23078(Top 11%)2719(Top 17%)2719(Top 48%)
Finish26.22 mi1.02 mi2081-401974-381974-383000(Top 11%)2668(Top 17%)2668(Top 47%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1329

Males

1262

M18-39

1262

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1464

Males

1391

M18-39

1391

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1329

Males

1262

M18-39

1262

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1478

Males

1400

M18-39

1400

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1387

Males

1319

M18-39

1319

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1546

Males

1468

M18-39

1468

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1989

Males

1891

M18-39

1891

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2935

Males

2734

M18-39

2734

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

5344

Males

4614

M18-39

4614

21M→35K

21.0 - 21.8 mi

Top 16%
×7stories
+17ft-86ft

Overall

4429

Males

3931

M18-39

3931

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

4202

Males

3731

M18-39

3731

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3862

Males

3415

M18-39

3415

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3412

Males

3031

M18-39

3031

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

3078

Males

2719

M18-39

2719

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3000

Males

2668

M18-39

2668

Passing Analysis

Category:
Athletes Passed
1221
Passed By
752
Net Change
+469
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2550
5K → 10K6322+630#2550#1920
10K → 15K2273+224#1920#1696
15K → 20K8517+68#1696#1628
20K → Half262+24#1628#1604
Half → 25K5618+38#1604#1566
25K → 30K5196-45#1566#1611
30K → 20M2392-69#1611#1680
20M → 21M10153-143#1680#1823
21M → 35K1676-60#1823#1883
35K → 23M17120-103#1883#1986
23M → 24M3156-25#1986#2011
24M → 40K2249-27#2011#2038
40K → 25.2M912-3#2038#2041
25.2M → Finish1656-40#2041#2081
TOTALS1221752+469
📊

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