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BOSTON MARATHON 2025

Joel Alexander

Bib: 12302•M

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 44%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 47%
Division (M50-54)
#0 / 1996
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
7:02/mi
21:50
↑ 97↓ 3451.5%
10K· 6.21 mi
7:21/mi
44:40
↑ 79↓ 1380.4%
15K· 9.32 mi
7:39/mi
1:08:26
↑ 67↓ 78
20K· 12.43 mi
7:57/mi
1:33:09
↑ 106↓ 860.1%
Half· 13.11 mi
7:45/mi
1:38:26
↑ 19↓ 370.5%
25K· 15.53 mi
8:08/mi
1:58:09
↑ 66↓ 880.2%
30K· 18.64 mi
8:19/mi
2:24:00
↑ 181↓ 1480.2%
20M
8:30/mi
2:35:33
↑ 64↓ 500.2%
21M
9:12/mi
2:44:45
↑ 106↓ 241.6%
35K· 21.75 mi
8:08/mi
2:50:50
↑ 17↓ 861.7%
23M
8:27/mi
3:01:25
↑ 23↓ 630.6%
24M
8:15/mi
3:09:40
↓ 821.3%
40K· 24.85 mi
8:22/mi
3:16:49
↓ 200.3%
25.2M
8:45/mi
3:19:50
↑ 13↓ 160.2%
Finish· 26.22 mi
7:34/mi
3:27:33
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:26
Pace7:31 /mi
2nd Half
Distance13.11 mi
Time1:49:07
Pace8:19 /mi
📊Positive Split: 10.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:1121:507:0221:50
7:02
-
10K
6.21 mi11:12:0144:407:1122:50
7:21
+0:19
15K
9.32 mi11:35:471:08:267:2123:46
7:39
+0:18
20K
12.43 mi12:00:301:33:097:3024:43
7:57
+0:18
Half
13.11 mi12:05:471:38:267:315:17
7:45
-0:12
25K
15.53 mi12:25:301:58:097:3619:43
8:08
+0:23
30K
18.64 mi12:51:212:24:007:4325:51
8:19
+0:11
20M
20.00 mi13:02:542:35:337:4711:33
8:30
+0:11
21M
21.00 mi13:12:062:44:457:519:12
9:12
+0:42
35K
21.75 mi13:18:112:50:507:516:05
8:08
-1:04
23M
23.00 mi13:28:463:01:257:5310:35
8:27
+0:19
24M
24.00 mi13:37:013:09:407:548:15
8:15
-0:12
40K
24.85 mi13:44:103:16:497:557:09
8:22
+0:07
25.2M
25.20 mi13:47:113:19:507:563:01
8:45
+0:23
Finish
26.22 mi13:54:543:27:337:557:43
7:34
-1:11

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

7:02 /mi

Average Pace

7:55 /mi

Slowest Pace

9:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:21:26

39% of race

Time at Steady Pace

1:31:46

44% of race

Time at Slower Pace

34:21

17% of race

Average Pace: 7:55 /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 mi10:49:1121:507:0221:50
7:02
#8038
10K
6.21 mi11:12:0144:407:1122:50
7:21
#9365
15K
9.32 mi11:35:471:08:267:2123:46
7:39
#10577
20K
12.43 mi12:00:301:33:097:3024:43
7:57
#11594
Half
13.11 mi12:05:471:38:267:315:17
7:45
#11709
25K
15.53 mi12:25:301:58:097:3619:43
8:08
#12235
30K
18.64 mi12:51:212:24:007:4325:51
8:19
#12466
20M
20.00 mi13:02:542:35:337:4711:33
8:30
#12534
21M
21.00 mi13:12:062:44:457:519:12
9:12
#12656
35K
21.75 mi13:18:112:50:507:516:05
8:08
#12658
23M
23.00 mi13:28:463:01:257:5310:35
8:27
#12663
24M
24.00 mi13:37:013:09:407:548:15
8:15
#12663
40K
24.85 mi13:44:103:16:497:557:09
8:22
#12649
25.2M
25.20 mi13:47:113:19:507:563:01
8:45
#12590
Finish
26.22 mi13:54:543:27:337:557:43
7:34
#12460
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi80387025702513029(Top 46%)9528(Top 59%)9528(Top 477%)
10K6.21 mi3.10 mi9365-13277817-7927817-79210734(Top 38%)8531(Top 53%)8531(Top 427%)
15K9.32 mi3.11 mi10577-12128438-6218438-62113029(Top 46%)9528(Top 59%)9528(Top 477%)
20K12.43 mi3.11 mi11594-10178897-4598897-45914565(Top 51%)10117(Top 63%)10117(Top 507%)
Half13.11 mi0.68 mi11709-1158957-608957-6013706(Top 48%)9755(Top 61%)9755(Top 489%)
25K15.53 mi2.42 mi12235-5269164-2079164-20714821(Top 52%)10122(Top 63%)10122(Top 507%)
30K18.64 mi3.11 mi12466-2319183-199183-1913620(Top 48%)9426(Top 59%)9426(Top 472%)
20M20.00 mi1.36 mi12534-689177+69177+613753(Top 48%)9326(Top 58%)9326(Top 467%)
21M21.00 mi1.00 mi12656-1229203-269203-2614597(Top 51%)9608(Top 60%)9608(Top 481%)
35K21.75 mi0.75 mi12658-29176+279176+2713109(Top 46%)8845(Top 55%)8845(Top 443%)
23M23.00 mi1.25 mi12663-59150+269150+2612991(Top 46%)8689(Top 54%)8689(Top 435%)
24M24.00 mi1.00 mi126639126+249126+2412894(Top 45%)8598(Top 53%)8598(Top 431%)
40K24.85 mi0.85 mi12649+149088+389088+3812516(Top 44%)8286(Top 51%)8286(Top 415%)
25.2M25.20 mi0.35 mi12590+599040+489040+4810283(Top 36%)7107(Top 44%)7107(Top 356%)
Finish26.22 mi1.02 mi12460+1308948+928948+929724(Top 34%)6835(Top 42%)6835(Top 342%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

13029

Males

9528

M50-54

9528

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10734

Males

8531

M50-54

8531

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

13029

Males

9528

M50-54

9528

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

14565

Males

10117

M50-54

10117

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

13706

Males

9755

M50-54

9755

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

14821

Males

10122

M50-54

10122

25K→30K

15.5 - 18.6 mi

Top 48%
×9story building
+181ft-148ft

Overall

13620

Males

9426

M50-54

9426

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

13753

Males

9326

M50-54

9326

20M→21M

20.0 - 21.0 mi

Top 51%
×8story building
+106ft-24ft

Overall

14597

Males

9608

M50-54

9608

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

13109

Males

8845

M50-54

8845

35K→23M

21.8 - 23.0 mi

Top 46%
×5story building
+23ft-63ft

Overall

12991

Males

8689

M50-54

8689

23M→24M

23.0 - 24.0 mi

Top 45%
×6story building
+12ft-82ft

Overall

12894

Males

8598

M50-54

8598

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12516

Males

8286

M50-54

8286

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

10283

Males

7107

M50-54

7107

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2story building
+22ft-21ft

Overall

9724

Males

6835

M50-54

6835

Passing Analysis

Category:
Athletes Passed
1037
Passed By
5457
Net Change
-4422
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8038
5K → 10K191346-1327#8038#9365
10K → 15K241234-1212#9365#10577
15K → 20K371054-1017#10577#11594
20K → Half9124-115#11594#11709
Half → 25K63589-526#11709#12235
25K → 30K176407-231#12235#12466
30K → 20M89157-68#12466#12534
20M → 21M80202-122#12534#12656
21M → 35K6567-2#12656#12658
35K → 23M107112-5#12658#12663
23M → 24M72720#12663#12663
24M → 40K8470+14#12663#12649
40K → 25.2M656+59#12649#12590
25.2M → Finish14717+130#12590#12460
TOTALS10375457-4422
📊

Passing Visuals

Category:
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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