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BOSTON MARATHON 2025

Alex Girden

Bib: 4483•M

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 7%
Gender (Male)
#0 / 16105
Top 11%
Division (M18-39)
#0 / 5642
Top 27%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:43
Rank: #2719
Start → 5K
19:43 | 6:21/mi
10K· 6.21 mi
39:15
Rank: #2527 (+192)
5K → 10K
19:32 | 6:17/mi
15K· 9.32 mi
58:55
Rank: #2508 (+19)
10K → 15K
19:40 | 6:20/mi
20K· 12.43 mi
1:18:47
Rank: #2483 (+25)
15K → 20K
19:52 | 6:24/mi
Half· 13.11 mi
1:23:03
Rank: #2465 (+18)
20K → Half
4:16 | 6:15/mi
25K· 15.53 mi
1:38:34
Rank: #2426 (+39)
Half → 25K
15:31 | 6:24/mi
30K· 18.64 mi
1:58:34
Rank: #2238 (+188)
25K → 30K
20:00 | 6:26/mi
20M
2:07:25
Rank: #2166 (+72)
30K → 20M
8:51 | 6:31/mi
21M
2:14:17
Rank: #2128 (+38)
20M → 21M
6:52 | 6:52/mi
35K· 21.75 mi
2:19:03
Rank: #2103 (+25)
21M → 35K
4:46 | 6:22/mi
23M
2:27:22
Rank: #2058 (+45)
35K → 23M
8:19 | 6:39/mi
24M
2:33:44
Rank: #1989 (+69)
23M → 24M
6:22 | 6:22/mi
40K· 24.85 mi
2:39:22
Rank: #1964 (+25)
24M → 40K
5:38 | 6:35/mi
25.2M
2:41:47
Rank: #1946 (+18)
40K → 25.2M
2:25 | 7:00/mi
Finish· 26.22 mi
2:48:13
Rank: #1925 (+21)
25.2M → Finish
6:26 | 6:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:03
Pace6:20 /mi
2nd Half
Distance13.11 mi
Time1:25:10
Pace6:30 /mi
📊Positive Split: 2.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5219:436:2119:43
6:21
-
10K
6.21 mi10:41:2439:156:1919:32
6:17
-0:04
15K
9.32 mi11:01:0458:556:1919:40
6:20
+0:03
20K
12.43 mi11:20:561:18:476:2019:52
6:24
+0:04
Half
13.11 mi11:25:121:23:036:204:16
6:15
-0:09
25K
15.53 mi11:40:431:38:346:2115:31
6:24
+0:09
30K
18.64 mi12:00:431:58:346:2220:00
6:26
+0:02
20M
20.00 mi12:09:342:07:256:228:51
6:31
+0:05
21M
21.00 mi12:16:262:14:176:246:52
6:52
+0:21
35K
21.75 mi12:21:122:19:036:244:46
6:22
-0:30
23M
23.00 mi12:29:312:27:226:248:19
6:39
+0:17
24M
24.00 mi12:35:532:33:446:246:22
6:22
-0:17
40K
24.85 mi12:41:312:39:226:255:38
6:35
+0:13
25.2M
25.20 mi12:43:562:41:476:252:25
7:00
+0:25
Finish
26.22 mi12:50:222:48:136:256:26
6:19
-0:41

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

6:15 /mi

Average Pace

6:25 /mi

Slowest Pace

7:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45:48

99% of race

Time at Steady Pace

2:25

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:25 /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 mi10:21:5219:436:2119:43
6:21
#2719
10K
6.21 mi10:41:2439:156:1919:32
6:17
#2527
15K
9.32 mi11:01:0458:556:1919:40
6:20
#2508
20K
12.43 mi11:20:561:18:476:2019:52
6:24
#2483
Half
13.11 mi11:25:121:23:036:204:16
6:15
#2465
25K
15.53 mi11:40:431:38:346:2115:31
6:24
#2426
30K
18.64 mi12:00:431:58:346:2220:00
6:26
#2238
20M
20.00 mi12:09:342:07:256:228:51
6:31
#2166
21M
21.00 mi12:16:262:14:176:246:52
6:52
#2128
35K
21.75 mi12:21:122:19:036:244:46
6:22
#2103
23M
23.00 mi12:29:312:27:226:248:19
6:39
#2058
24M
24.00 mi12:35:532:33:446:246:22
6:22
#1989
40K
24.85 mi12:41:312:39:226:255:38
6:35
#1964
25.2M
25.20 mi12:43:562:41:476:252:25
7:00
#1946
Finish
26.22 mi12:50:222:48:136:256:26
6:19
#1925
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2719259225922507(Top 9%)2392(Top 15%)2392(Top 42%)
10K6.21 mi3.10 mi2527+1922407+1852407+1852326(Top 8%)2225(Top 14%)2225(Top 39%)
15K9.32 mi3.11 mi2508+192392+152392+152507(Top 9%)2392(Top 15%)2392(Top 42%)
20K12.43 mi3.11 mi2483+252369+232369+232478(Top 9%)2363(Top 15%)2363(Top 42%)
Half13.11 mi0.68 mi2465+182352+172352+172203(Top 8%)2104(Top 13%)2104(Top 37%)
25K15.53 mi2.42 mi2426+392315+372315+372351(Top 8%)2236(Top 14%)2236(Top 40%)
30K18.64 mi3.11 mi2238+1882133+1822133+1821701(Top 6%)1614(Top 10%)1614(Top 29%)
20M20.00 mi1.36 mi2166+722064+692064+691664(Top 6%)1572(Top 10%)1572(Top 28%)
21M21.00 mi1.00 mi2128+382027+372027+371740(Top 6%)1641(Top 10%)1641(Top 29%)
35K21.75 mi0.75 mi2103+252002+252002+251878(Top 7%)1762(Top 11%)1762(Top 31%)
23M23.00 mi1.25 mi2058+451957+451957+451985(Top 7%)1855(Top 12%)1855(Top 33%)
24M24.00 mi1.00 mi1989+691888+691888+691521(Top 5%)1420(Top 9%)1420(Top 25%)
40K24.85 mi0.85 mi1964+251862+261862+261908(Top 7%)1758(Top 11%)1758(Top 31%)
25.2M25.20 mi0.35 mi1946+181844+181844+181484(Top 5%)1355(Top 8%)1355(Top 24%)
Finish26.22 mi1.02 mi1925+211823+211823+211932(Top 7%)1776(Top 11%)1776(Top 31%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2507

Males

2392

M18-39

2392

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2326

Males

2225

M18-39

2225

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2507

Males

2392

M18-39

2392

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2478

Males

2363

M18-39

2363

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2203

Males

2104

M18-39

2104

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2351

Males

2236

M18-39

2236

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1701

Males

1614

M18-39

1614

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1664

Males

1572

M18-39

1572

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1740

Males

1641

M18-39

1641

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1878

Males

1762

M18-39

1762

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

1985

Males

1855

M18-39

1855

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1521

Males

1420

M18-39

1420

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1908

Males

1758

M18-39

1758

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1484

Males

1355

M18-39

1355

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

1932

Males

1776

M18-39

1776

Passing Analysis

Category:
Athletes Passed
1119
Passed By
325
Net Change
+794
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2719
5K → 10K22836+192#2719#2527
10K → 15K9475+19#2527#2508
15K → 20K8358+25#2508#2483
20K → Half268+18#2483#2465
Half → 25K7536+39#2465#2426
25K → 30K20315+188#2426#2238
30K → 20M797+72#2238#2166
20M → 21M5719+38#2166#2128
21M → 35K349+25#2128#2103
35K → 23M6318+45#2103#2058
23M → 24M745+69#2058#1989
24M → 40K3712+25#1989#1964
40K → 25.2M235+18#1964#1946
25.2M → Finish4322+21#1946#1925
TOTALS1119325+794
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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