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BOSTON MARATHON 2025

Anderson Shew

Bib: 2117•M

MN

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 19%
Gender (Male)
#0 / 16105
Top 31%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:52
Rank: #3096
Start → 5K
19:52 | 6:24/mi
10K· 6.21 mi
40:14
Rank: #3601 (-505)
5K → 10K
20:22 | 6:33/mi
15K· 9.32 mi
1:01:04
Rank: #4047 (-446)
10K → 15K
20:50 | 6:42/mi
20K· 12.43 mi
1:21:57
Rank: #4127 (-80)
15K → 20K
20:53 | 6:43/mi
Half· 13.11 mi
1:26:26
Rank: #4116 (+11)
20K → Half
4:29 | 6:34/mi
25K· 15.53 mi
1:43:00
Rank: #4227 (-111)
Half → 25K
16:34 | 6:50/mi
30K· 18.64 mi
2:04:39
Rank: #4209 (+18)
25K → 30K
21:39 | 6:58/mi
20M
2:14:19
Rank: #4231 (-22)
30K → 20M
9:40 | 7:07/mi
21M
2:21:53
Rank: #4243 (-12)
20M → 21M
7:34 | 7:34/mi
35K· 21.75 mi
2:27:22
Rank: #4371 (-128)
21M → 35K
5:29 | 7:20/mi
23M
2:37:27
Rank: #4749 (-378)
35K → 23M
10:05 | 8:03/mi
24M
2:45:55
Rank: #5193 (-444)
23M → 24M
8:28 | 8:28/mi
40K· 24.85 mi
2:53:05
Rank: #5375 (-182)
24M → 40K
7:10 | 8:23/mi
25.2M
2:56:26
Rank: #5469 (-94)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
3:03:46
Rank: #5462 (+7)
25.2M → Finish
7:20 | 7:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:26
Pace6:36 /mi
2nd Half
Distance13.11 mi
Time1:37:20
Pace7:25 /mi
📊Positive Split: 12.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:0119:526:2419:52
6:24
-
10K
6.21 mi10:42:2340:146:2820:22
6:33
+0:09
15K
9.32 mi11:03:131:01:046:3320:50
6:42
+0:09
20K
12.43 mi11:24:061:21:576:3620:53
6:43
+0:01
Half
13.11 mi11:28:351:26:266:364:29
6:34
-0:09
25K
15.53 mi11:45:091:43:006:3816:34
6:50
+0:16
30K
18.64 mi12:06:482:04:396:4121:39
6:58
+0:08
20M
20.00 mi12:16:282:14:196:439:40
7:07
+0:09
21M
21.00 mi12:24:022:21:536:457:34
7:34
+0:27
35K
21.75 mi12:29:312:27:226:475:29
7:20
-0:14
23M
23.00 mi12:39:362:37:276:5110:05
8:03
+0:43
24M
24.00 mi12:48:042:45:556:558:28
8:28
+0:25
40K
24.85 mi12:55:142:53:056:587:10
8:23
-0:05
25.2M
25.20 mi12:58:352:56:267:003:21
9:43
+1:20
Finish
26.22 mi13:05:553:03:467:017:20
7:12
-2:31

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

6:24 /mi

Average Pace

7:01 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

44:43

24% of race

Time at Steady Pace

1:42:25

56% of race

Time at Slower Pace

36:38

20% of race

Average Pace: 7:01 /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 mi10:22:0119:526:2419:52
6:24
#3096
10K
6.21 mi10:42:2340:146:2820:22
6:33
#3601
15K
9.32 mi11:03:131:01:046:3320:50
6:42
#4047
20K
12.43 mi11:24:061:21:576:3620:53
6:43
#4127
Half
13.11 mi11:28:351:26:266:364:29
6:34
#4116
25K
15.53 mi11:45:091:43:006:3816:34
6:50
#4227
30K
18.64 mi12:06:482:04:396:4121:39
6:58
#4209
20M
20.00 mi12:16:282:14:196:439:40
7:07
#4231
21M
21.00 mi12:24:022:21:536:457:34
7:34
#4243
35K
21.75 mi12:29:312:27:226:475:29
7:20
#4371
23M
23.00 mi12:39:362:37:276:5110:05
8:03
#4749
24M
24.00 mi12:48:042:45:556:558:28
8:28
#5193
40K
24.85 mi12:55:142:53:056:587:10
8:23
#5375
25.2M
25.20 mi12:58:352:56:267:003:21
9:43
#5469
Finish
26.22 mi13:05:553:03:467:017:20
7:12
#5462
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3096294129415137(Top 18%)4762(Top 30%)4762(Top 84%)
10K6.21 mi3.10 mi3601-5053416-4753416-4754126(Top 15%)3880(Top 24%)3880(Top 69%)
15K9.32 mi3.11 mi4047-4463816-4003816-4005137(Top 18%)4762(Top 30%)4762(Top 84%)
20K12.43 mi3.11 mi4127-803882-663882-664631(Top 16%)4304(Top 27%)4304(Top 76%)
Half13.11 mi0.68 mi4116+113872+103872+104233(Top 15%)3972(Top 25%)3972(Top 70%)
25K15.53 mi2.42 mi4227-1113968-963968-965146(Top 18%)4721(Top 29%)4721(Top 84%)
30K18.64 mi3.11 mi4209+183941+273941+274516(Top 16%)4128(Top 26%)4128(Top 73%)
20M20.00 mi1.36 mi4231-223958-173958-174760(Top 17%)4301(Top 27%)4301(Top 76%)
21M21.00 mi1.00 mi4243-123954+43954+44948(Top 17%)4336(Top 27%)4336(Top 77%)
35K21.75 mi0.75 mi4371-1284056-1024056-1027385(Top 26%)5919(Top 37%)5919(Top 105%)
23M23.00 mi1.25 mi4749-3784367-3114367-31110399(Top 37%)7423(Top 46%)7423(Top 132%)
24M24.00 mi1.00 mi5193-4444731-3644731-36414250(Top 50%)9249(Top 57%)9249(Top 164%)
40K24.85 mi0.85 mi5375-1824871-1404871-14012621(Top 44%)8327(Top 52%)8327(Top 148%)
25.2M25.20 mi0.35 mi5469-944936-654936-6515577(Top 55%)9643(Top 60%)9643(Top 171%)
Finish26.22 mi1.02 mi5462+74915+214915+217005(Top 25%)5335(Top 33%)5335(Top 95%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

5137

Males

4762

M18-39

4762

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4126

Males

3880

M18-39

3880

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

5137

Males

4762

M18-39

4762

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4631

Males

4304

M18-39

4304

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

4233

Males

3972

M18-39

3972

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

5146

Males

4721

M18-39

4721

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4516

Males

4128

M18-39

4128

30K→20M

18.6 - 20.0 mi

Top 17%
×5stories
+64ft-50ft

Overall

4760

Males

4301

M18-39

4301

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4948

Males

4336

M18-39

4336

21M→35K

21.0 - 21.8 mi

Top 26%
×7stories
+17ft-86ft

Overall

7385

Males

5919

M18-39

5919

35K→23M

21.8 - 23.0 mi

Top 37%
×5stories
+23ft-63ft

Overall

10399

Males

7423

M18-39

7423

23M→24M

23.0 - 24.0 mi

Top 50%
×6stories
+12ft-82ft

Overall

14250

Males

9249

M18-39

9249

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12621

Males

8327

M18-39

8327

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15577

Males

9643

M18-39

9643

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

7005

Males

5335

M18-39

5335

Passing Analysis

Category:
Athletes Passed
604
Passed By
2970
Net Change
-2366
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3096
5K → 10K16521-505#3096#3601
10K → 15K20466-446#3601#4047
15K → 20K78158-80#4047#4127
20K → Half2817+11#4127#4116
Half → 25K56167-111#4116#4227
25K → 30K145127+18#4227#4209
30K → 20M6789-22#4209#4231
20M → 21M6678-12#4231#4243
21M → 35K19147-128#4243#4371
35K → 23M25403-378#4371#4749
23M → 24M8452-444#4749#5193
24M → 40K17199-182#5193#5375
40K → 25.2M10104-94#5375#5469
25.2M → Finish4942+7#5469#5462
TOTALS6042970-2366
📊

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