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BOSTON MARATHON 2025

Alec Fitzsimmons

Bib: 600•M

WI

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 2%
Gender (Male)
#0 / 16105
Top 3%
Division (M18-39)
#0 / 5642
Top 8%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:50
Rank: #1264
Start → 5K
18:50 | 6:04/mi
10K· 6.21 mi
37:28
Rank: #1164 (+100)
5K → 10K
18:38 | 6:00/mi
15K· 9.32 mi
55:54
Rank: #1037 (+127)
10K → 15K
18:26 | 5:56/mi
20K· 12.43 mi
1:14:28
Rank: #973 (+64)
15K → 20K
18:34 | 5:59/mi
Half· 13.11 mi
1:18:30
Rank: #968 (+5)
20K → Half
4:02 | 5:55/mi
25K· 15.53 mi
1:32:56
Rank: #903 (+65)
Half → 25K
14:26 | 5:57/mi
30K· 18.64 mi
1:51:35
Rank: #792 (+111)
25K → 30K
18:39 | 6:00/mi
20M
1:59:44
Rank: #743 (+49)
30K → 20M
8:09 | 6:00/mi
21M
2:05:56
Rank: #695 (+48)
20M → 21M
6:12 | 6:12/mi
35K· 21.75 mi
2:10:17
Rank: #664 (+31)
21M → 35K
4:21 | 5:49/mi
23M
2:17:41
Rank: #620 (+44)
35K → 23M
7:24 | 5:55/mi
24M
2:23:36
Rank: #603 (+17)
23M → 24M
5:55 | 5:55/mi
40K· 24.85 mi
2:28:39
Rank: #581 (+22)
24M → 40K
5:03 | 5:54/mi
25.2M
2:30:51
Rank: #571 (+10)
40K → 25.2M
2:12 | 6:23/mi
Finish· 26.22 mi
2:36:34
Rank: #539 (+32)
25.2M → Finish
5:43 | 5:37/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:18:30
Pace5:59 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:18:04
Pace5:57 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:0118:506:0418:50
6:04
-
10K
6.21 mi10:37:3937:286:0218:38
6:00
-0:04
15K
9.32 mi10:56:0555:546:0018:26
5:56
-0:04
20K
12.43 mi11:14:391:14:286:0018:34
5:59
+0:03
Half
13.11 mi11:18:411:18:305:594:02
5:55
-0:04
25K
15.53 mi11:33:071:32:565:5914:26
5:57
+0:02
30K
18.64 mi11:51:461:51:355:5918:39
6:00
+0:03
20M
20.00 mi11:59:551:59:445:598:09
6:00
0:00
21M
21.00 mi12:06:072:05:566:006:12
6:12
+0:12
35K
21.75 mi12:10:282:10:175:594:21
5:49
-0:23
23M
23.00 mi12:17:522:17:415:597:24
5:55
+0:06
24M
24.00 mi12:23:472:23:365:595:55
5:55
0:00
40K
24.85 mi12:28:502:28:395:595:03
5:54
-0:01
25.2M
25.20 mi12:31:022:30:515:592:12
6:23
+0:29
Finish
26.22 mi12:36:452:36:345:595:43
5:37
-0:46

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

5:37 /mi

Average Pace

5:59 /mi

Slowest Pace

6:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:28:10

95% of race

Time at Steady Pace

8:24

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:58 /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 mi10:19:0118:506:0418:50
6:04
#1264
10K
6.21 mi10:37:3937:286:0218:38
6:00
#1164
15K
9.32 mi10:56:0555:546:0018:26
5:56
#1037
20K
12.43 mi11:14:391:14:286:0018:34
5:59
#973
Half
13.11 mi11:18:411:18:305:594:02
5:55
#968
25K
15.53 mi11:33:071:32:565:5914:26
5:57
#903
30K
18.64 mi11:51:461:51:355:5918:39
6:00
#792
20M
20.00 mi11:59:551:59:445:598:09
6:00
#743
21M
21.00 mi12:06:072:05:566:006:12
6:12
#695
35K
21.75 mi12:10:282:10:175:594:21
5:49
#664
23M
23.00 mi12:17:522:17:415:597:24
5:55
#620
24M
24.00 mi12:23:472:23:365:595:55
5:55
#603
40K
24.85 mi12:28:502:28:395:595:03
5:54
#581
25.2M
25.20 mi12:31:022:30:515:592:12
6:23
#571
Finish
26.22 mi12:36:452:36:345:595:43
5:37
#539
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi126411991199830(Top 3%)778(Top 5%)778(Top 14%)
10K6.21 mi3.10 mi1164+1001101+981101+981087(Top 4%)1025(Top 6%)1025(Top 18%)
15K9.32 mi3.11 mi1037+127977+124977+124830(Top 3%)778(Top 5%)778(Top 14%)
20K12.43 mi3.11 mi973+64916+61916+61815(Top 3%)766(Top 5%)766(Top 14%)
Half13.11 mi0.68 mi968+5912+4912+4846(Top 3%)798(Top 5%)798(Top 14%)
25K15.53 mi2.42 mi903+65851+61851+61682(Top 2%)634(Top 4%)634(Top 11%)
30K18.64 mi3.11 mi792+111743+108743+108491(Top 2%)457(Top 3%)457(Top 8%)
20M20.00 mi1.36 mi743+49696+47696+47381(Top 1%)356(Top 2%)356(Top 6%)
21M21.00 mi1.00 mi695+48648+48648+48265(Top 0.9%)248(Top 2%)248(Top 4%)
35K21.75 mi0.75 mi664+31617+31617+31399(Top 1%)373(Top 2%)373(Top 7%)
23M23.00 mi1.25 mi620+44573+44573+44258(Top 0.9%)239(Top 1%)239(Top 4%)
24M24.00 mi1.00 mi603+17557+16557+16411(Top 1%)382(Top 2%)382(Top 7%)
40K24.85 mi0.85 mi581+22535+22535+22293(Top 1%)270(Top 2%)270(Top 5%)
25.2M25.20 mi0.35 mi571+10526+9526+9309(Top 1%)287(Top 2%)287(Top 5%)
Finish26.22 mi1.02 mi539+32497+29497+29249(Top 0.9%)236(Top 1%)236(Top 4%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

830

Males

778

M18-39

778

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

1087

Males

1025

M18-39

1025

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

830

Males

778

M18-39

778

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

815

Males

766

M18-39

766

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

846

Males

798

M18-39

798

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

682

Males

634

M18-39

634

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

491

Males

457

M18-39

457

30K→20M

18.6 - 20.0 mi

Top 1%
×5stories
+64ft-50ft

Overall

381

Males

356

M18-39

356

20M→21M

20.0 - 21.0 mi

Top 0.9%
×8stories
+106ft-24ft

Overall

265

Males

248

M18-39

248

21M→35K

21.0 - 21.8 mi

Top 1%
×7stories
+17ft-86ft

Overall

399

Males

373

M18-39

373

35K→23M

21.8 - 23.0 mi

Top 0.9%
×5stories
+23ft-63ft

Overall

258

Males

239

M18-39

239

23M→24M

23.0 - 24.0 mi

Top 1%
×6stories
+12ft-82ft

Overall

411

Males

382

M18-39

382

24M→40K

24.0 - 24.9 mi

Top 1%
×1story
+6ft-20ft

Overall

293

Males

270

M18-39

270

40K→25.2M

24.9 - 25.2 mi

Top 1%
×1story
+13ft-16ft

Overall

309

Males

287

M18-39

287

25.2M→Finish

25.2 - 26.2 mi

Top 0.9%
×2stories
+22ft-21ft

Overall

249

Males

236

M18-39

236

Passing Analysis

Category:
Athletes Passed
775
Passed By
50
Net Change
+725
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1264
5K → 10K12525+100#1264#1164
10K → 15K1303+127#1164#1037
15K → 20K706+64#1037#973
20K → Half83+5#973#968
Half → 25K694+65#968#903
25K → 30K1110+111#903#792
30K → 20M501+49#792#743
20M → 21M491+48#743#695
21M → 35K343+31#695#664
35K → 23M440+44#664#620
23M → 24M214+17#620#603
24M → 40K220+22#603#581
40K → 25.2M100+10#581#571
25.2M → Finish320+32#571#539
TOTALS77550+725
📊

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