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BOSTON MARATHON 2025

Alex Eld

Bib: 7924•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 6%
Gender (Male)
#0 / 16105
Top 10%
Division (M18-39)
#0 / 5642
Top 23%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:46
Rank: #2846
Start → 5K
19:46 | 6:22/mi
10K· 6.21 mi
39:31
Rank: #2791 (+55)
5K → 10K
19:45 | 6:21/mi
15K· 9.32 mi
58:54
Rank: #2501 (+290)
10K → 15K
19:23 | 6:14/mi
20K· 12.43 mi
1:18:29
Rank: #2336 (+165)
15K → 20K
19:35 | 6:18/mi
Half· 13.11 mi
1:22:47
Rank: #2341 (-5)
20K → Half
4:18 | 6:18/mi
25K· 15.53 mi
1:38:04
Rank: #2251 (+90)
Half → 25K
15:17 | 6:18/mi
30K· 18.64 mi
1:58:06
Rank: #2113 (+138)
25K → 30K
20:02 | 6:27/mi
20M
2:06:52
Rank: #2039 (+74)
30K → 20M
8:46 | 6:27/mi
21M
2:13:35
Rank: #1958 (+81)
20M → 21M
6:43 | 6:43/mi
35K· 21.75 mi
2:18:18
Rank: #1922 (+36)
21M → 35K
4:43 | 6:18/mi
23M
2:26:19
Rank: #1833 (+89)
35K → 23M
8:01 | 6:24/mi
24M
2:32:39
Rank: #1794 (+39)
23M → 24M
6:20 | 6:20/mi
40K· 24.85 mi
2:38:06
Rank: #1744 (+50)
24M → 40K
5:27 | 6:22/mi
25.2M
2:40:26
Rank: #1704 (+40)
40K → 25.2M
2:20 | 6:46/mi
Finish· 26.22 mi
2:46:36
Rank: #1634 (+70)
25.2M → Finish
6:10 | 6:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:47
Pace6:19 /mi
2nd Half
Distance13.11 mi
Time1:23:49
Pace6:24 /mi
📊Positive Split: 1.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:1919:466:2219:46
6:22
-
10K
6.21 mi10:47:0439:316:2219:45
6:21
-0:01
15K
9.32 mi11:06:2758:546:1919:23
6:14
-0:07
20K
12.43 mi11:26:021:18:296:1919:35
6:18
+0:04
Half
13.11 mi11:30:201:22:476:194:18
6:18
0:00
25K
15.53 mi11:45:371:38:046:1915:17
6:18
0:00
30K
18.64 mi12:05:391:58:066:2020:02
6:27
+0:09
20M
20.00 mi12:14:252:06:526:218:46
6:27
0:00
21M
21.00 mi12:21:082:13:356:226:43
6:43
+0:16
35K
21.75 mi12:25:512:18:186:224:43
6:18
-0:25
23M
23.00 mi12:33:522:26:196:228:01
6:24
+0:06
24M
24.00 mi12:40:122:32:396:226:20
6:20
-0:04
40K
24.85 mi12:45:392:38:066:225:27
6:22
+0:02
25.2M
25.20 mi12:47:592:40:266:222:20
6:46
+0:24
Finish
26.22 mi12:54:092:46:366:226:10
6:03
-0:43

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

6:22 /mi

Slowest Pace

6:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:37:33

95% of race

Time at Steady Pace

9:03

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:21 /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 mi10:27:1919:466:2219:46
6:22
#2846
10K
6.21 mi10:47:0439:316:2219:45
6:21
#2791
15K
9.32 mi11:06:2758:546:1919:23
6:14
#2501
20K
12.43 mi11:26:021:18:296:1919:35
6:18
#2336
Half
13.11 mi11:30:201:22:476:194:18
6:18
#2341
25K
15.53 mi11:45:371:38:046:1915:17
6:18
#2251
30K
18.64 mi12:05:391:58:066:2020:02
6:27
#2113
20M
20.00 mi12:14:252:06:526:218:46
6:27
#2039
21M
21.00 mi12:21:082:13:356:226:43
6:43
#1958
35K
21.75 mi12:25:512:18:186:224:43
6:18
#1922
23M
23.00 mi12:33:522:26:196:228:01
6:24
#1833
24M
24.00 mi12:40:122:32:396:226:20
6:20
#1794
40K
24.85 mi12:45:392:38:066:225:27
6:22
#1744
25.2M
25.20 mi12:47:592:40:266:222:20
6:46
#1704
Finish
26.22 mi12:54:092:46:366:226:10
6:03
#1634
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2846270927092036(Top 7%)1940(Top 12%)1940(Top 34%)
10K6.21 mi3.10 mi2791+552658+512658+512776(Top 10%)2644(Top 16%)2644(Top 47%)
15K9.32 mi3.11 mi2501+2902386+2722386+2722036(Top 7%)1940(Top 12%)1940(Top 34%)
20K12.43 mi3.11 mi2336+1652229+1572229+1572030(Top 7%)1935(Top 12%)1935(Top 34%)
Half13.11 mi0.68 mi2341-52234-52234-52543(Top 9%)2432(Top 15%)2432(Top 43%)
25K15.53 mi2.42 mi2251+902148+862148+861877(Top 7%)1785(Top 11%)1785(Top 32%)
30K18.64 mi3.11 mi2113+1382015+1332015+1331765(Top 6%)1676(Top 10%)1676(Top 30%)
20M20.00 mi1.36 mi2039+741942+731942+731449(Top 5%)1371(Top 9%)1371(Top 24%)
21M21.00 mi1.00 mi1958+811862+801862+801267(Top 4%)1197(Top 7%)1197(Top 21%)
35K21.75 mi0.75 mi1922+361826+361826+361646(Top 6%)1546(Top 10%)1546(Top 27%)
23M23.00 mi1.25 mi1833+891739+871739+871161(Top 4%)1097(Top 7%)1097(Top 19%)
24M24.00 mi1.00 mi1794+391699+401699+401416(Top 5%)1327(Top 8%)1327(Top 24%)
40K24.85 mi0.85 mi1744+501652+471652+471185(Top 4%)1107(Top 7%)1107(Top 20%)
25.2M25.20 mi0.35 mi1704+401615+371615+37926(Top 3%)859(Top 5%)859(Top 15%)
Finish26.22 mi1.02 mi1634+701546+691546+691072(Top 4%)1006(Top 6%)1006(Top 18%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

2036

Males

1940

M18-39

1940

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2776

Males

2644

M18-39

2644

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

2036

Males

1940

M18-39

1940

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

2030

Males

1935

M18-39

1935

20K→Half

12.4 - 13.1 mi

Top 9%
×2stories
+19ft-37ft

Overall

2543

Males

2432

M18-39

2432

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1877

Males

1785

M18-39

1785

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1765

Males

1676

M18-39

1676

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1449

Males

1371

M18-39

1371

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1267

Males

1197

M18-39

1197

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1646

Males

1546

M18-39

1546

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1161

Males

1097

M18-39

1097

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1416

Males

1327

M18-39

1327

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1185

Males

1107

M18-39

1107

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

926

Males

859

M18-39

859

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1072

Males

1006

M18-39

1006

Passing Analysis

Category:
Athletes Passed
1422
Passed By
210
Net Change
+1212
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2846
5K → 10K155100+55#2846#2791
10K → 15K2944+290#2791#2501
15K → 20K17712+165#2501#2336
20K → Half914-5#2336#2341
Half → 25K10414+90#2341#2251
25K → 30K15618+138#2251#2113
30K → 20M806+74#2113#2039
20M → 21M865+81#2039#1958
21M → 35K415+36#1958#1922
35K → 23M956+89#1922#1833
23M → 24M5314+39#1833#1794
24M → 40K6010+50#1794#1744
40K → 25.2M400+40#1744#1704
25.2M → Finish722+70#1704#1634
TOTALS1422210+1212
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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