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BOSTON MARATHON 2025

Spencer Hollander

Bib: 3356•M

TX

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 38%
Gender (Male)
#0 / 16105
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
21:35
Rank: #7415
Start → 5K
21:35 | 6:57/mi
10K· 6.21 mi
43:16
Rank: #7616 (-201)
5K → 10K
21:41 | 6:59/mi
15K· 9.32 mi
1:05:24
Rank: #7874 (-258)
10K → 15K
22:08 | 7:07/mi
20K· 12.43 mi
1:28:00
Rank: #8043 (-169)
15K → 20K
22:36 | 7:16/mi
Half· 13.11 mi
1:32:55
Rank: #8086 (-43)
20K → Half
4:55 | 7:12/mi
25K· 15.53 mi
1:51:04
Rank: #8291 (-205)
Half → 25K
18:09 | 7:29/mi
30K· 18.64 mi
2:15:33
Rank: #8608 (-317)
25K → 30K
24:29 | 7:53/mi
20M
2:26:52
Rank: #8894 (-286)
30K → 20M
11:19 | 8:20/mi
21M
2:35:35
Rank: #9055 (-161)
20M → 21M
8:43 | 8:43/mi
35K· 21.75 mi
2:41:50
Rank: #9249 (-194)
21M → 35K
6:15 | 8:21/mi
23M
2:53:52
Rank: #10007 (-758)
35K → 23M
12:02 | 9:37/mi
24M
3:02:06
Rank: #10121 (-114)
23M → 24M
8:14 | 8:14/mi
40K· 24.85 mi
3:10:05
Rank: #10465 (-344)
24M → 40K
7:59 | 9:20/mi
25.2M
3:14:00
Rank: #10719 (-254)
40K → 25.2M
3:55 | 11:21/mi
Finish· 26.22 mi
3:22:03
Rank: #10740 (-21)
25.2M → Finish
8:03 | 7:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:55
Pace7:05 /mi
2nd Half
Distance13.11 mi
Time1:49:08
Pace8:20 /mi
📊Positive Split: 17.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:0121:356:5721:35
6:57
-
10K
6.21 mi10:49:4243:166:5821:41
6:59
+0:02
15K
9.32 mi11:11:501:05:247:0122:08
7:07
+0:08
20K
12.43 mi11:34:261:28:007:0522:36
7:16
+0:09
Half
13.11 mi11:39:211:32:557:054:55
7:12
-0:04
25K
15.53 mi11:57:301:51:047:0918:09
7:29
+0:17
30K
18.64 mi12:21:592:15:337:1624:29
7:53
+0:24
20M
20.00 mi12:33:182:26:527:2111:19
8:20
+0:27
21M
21.00 mi12:42:012:35:357:258:43
8:43
+0:23
35K
21.75 mi12:48:162:41:507:266:15
8:21
-0:22
23M
23.00 mi13:00:182:53:527:3412:02
9:37
+1:16
24M
24.00 mi13:08:323:02:067:358:14
8:14
-1:23
40K
24.85 mi13:16:313:10:057:397:59
9:20
+1:06
25.2M
25.20 mi13:20:263:14:007:423:55
11:21
+2:01
Finish
26.22 mi13:28:293:22:037:438:03
7:54
-3:27

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

6:57 /mi

Average Pace

7:43 /mi

Slowest Pace

11:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:55

46% of race

Time at Steady Pace

1:16:29

38% of race

Time at Slower Pace

32:39

16% of race

Average Pace: 7:42 /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 mi10:28:0121:356:5721:35
6:57
#7415
10K
6.21 mi10:49:4243:166:5821:41
6:59
#7616
15K
9.32 mi11:11:501:05:247:0122:08
7:07
#7874
20K
12.43 mi11:34:261:28:007:0522:36
7:16
#8043
Half
13.11 mi11:39:211:32:557:054:55
7:12
#8086
25K
15.53 mi11:57:301:51:047:0918:09
7:29
#8291
30K
18.64 mi12:21:592:15:337:1624:29
7:53
#8608
20M
20.00 mi12:33:182:26:527:2111:19
8:20
#8894
21M
21.00 mi12:42:012:35:357:258:43
8:43
#9055
35K
21.75 mi12:48:162:41:507:266:15
8:21
#9249
23M
23.00 mi13:00:182:53:527:3412:02
9:37
#10007
24M
24.00 mi13:08:323:02:067:358:14
8:14
#10121
40K
24.85 mi13:16:313:10:057:397:59
9:20
#10465
25.2M
25.20 mi13:20:263:14:007:423:55
11:21
#10719
Finish
26.22 mi13:28:293:22:037:438:03
7:54
#10740
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi7415660966098502(Top 30%)7250(Top 45%)7250(Top 129%)
10K6.21 mi3.10 mi7616-2016734-1256734-1257799(Top 27%)6842(Top 42%)6842(Top 121%)
15K9.32 mi3.11 mi7874-2586899-1656899-1658502(Top 30%)7250(Top 45%)7250(Top 129%)
20K12.43 mi3.11 mi8043-1696983-846983-848830(Top 31%)7357(Top 46%)7357(Top 130%)
Half13.11 mi0.68 mi8086-437006-237006-239129(Top 32%)7561(Top 47%)7561(Top 134%)
25K15.53 mi2.42 mi8291-2057111-1057111-1059843(Top 35%)7782(Top 48%)7782(Top 138%)
30K18.64 mi3.11 mi8608-3177249-1387249-13810491(Top 37%)7927(Top 49%)7927(Top 140%)
20M20.00 mi1.36 mi8894-2867379-1307379-13012638(Top 44%)8826(Top 55%)8826(Top 156%)
21M21.00 mi1.00 mi9055-1617437-587437-5811758(Top 41%)8250(Top 51%)8250(Top 146%)
35K21.75 mi0.75 mi9249-1947509-727509-7214567(Top 51%)9521(Top 59%)9521(Top 169%)
23M23.00 mi1.25 mi10007-7587868-3597868-35919103(Top 67%)11486(Top 71%)11486(Top 204%)
24M24.00 mi1.00 mi10121-1147892-247892-2412767(Top 45%)8530(Top 53%)8530(Top 151%)
40K24.85 mi0.85 mi10465-3448042-1508042-15017981(Top 63%)10808(Top 67%)10808(Top 192%)
25.2M25.20 mi0.35 mi10719-2548146-1048146-10421621(Top 76%)12578(Top 78%)12578(Top 223%)
Finish26.22 mi1.02 mi10740-218113+338113+3312138(Top 43%)8104(Top 50%)8104(Top 144%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21stories
+97ft-345ft

Overall

8502

Males

7250

M18-39

7250

5K→10K

3.1 - 6.2 mi

Top 27%
×5stories
+79ft-138ft

Overall

7799

Males

6842

M18-39

6842

10K→15K

6.2 - 9.3 mi

Top 30%
×3stories
+67ft-78ft

Overall

8502

Males

7250

M18-39

7250

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

8830

Males

7357

M18-39

7357

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

9129

Males

7561

M18-39

7561

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

9843

Males

7782

M18-39

7782

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

10491

Males

7927

M18-39

7927

30K→20M

18.6 - 20.0 mi

Top 44%
×5stories
+64ft-50ft

Overall

12638

Males

8826

M18-39

8826

20M→21M

20.0 - 21.0 mi

Top 41%
×8stories
+106ft-24ft

Overall

11758

Males

8250

M18-39

8250

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

14567

Males

9521

M18-39

9521

35K→23M

21.8 - 23.0 mi

Top 67%
×5stories
+23ft-63ft

Overall

19103

Males

11486

M18-39

11486

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

12767

Males

8530

M18-39

8530

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

17981

Males

10808

M18-39

10808

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21621

Males

12578

M18-39

12578

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2stories
+22ft-21ft

Overall

12138

Males

8104

M18-39

8104

Passing Analysis

Category:
Athletes Passed
772
Passed By
4094
Net Change
-3325
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7415
5K → 10K129330-201#7415#7616
10K → 15K65323-258#7616#7874
15K → 20K87256-169#7874#8043
20K → Half1457-43#8043#8086
Half → 25K68273-205#8086#8291
25K → 30K124441-317#8291#8608
30K → 20M40326-286#8608#8894
20M → 21M59220-161#8894#9055
21M → 35K22216-194#9055#9249
35K → 23M13769-758#9249#10007
23M → 24M53166-114#10007#10121
24M → 40K20364-344#10121#10465
40K → 25.2M6260-254#10465#10719
25.2M → Finish7293-21#10719#10740
TOTALS7724094-3325
📊

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