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BOSTON MARATHON 2025

Ian Bater

Bib: 4404•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 27%
Gender (Male)
#0 / 16105
Top 40%
Masters (Masters Men)
#0 / 10463
Top 27%
Division (M50-54)
#0 / 1996
Top 23%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:08
Rank: #3694
Start → 5K
20:08 | 6:29/mi
10K· 6.21 mi
40:39
Rank: #4080 (-386)
5K → 10K
20:31 | 6:36/mi
15K· 9.32 mi
1:01:19
Rank: #4244 (-164)
10K → 15K
20:40 | 6:39/mi
20K· 12.43 mi
1:22:24
Rank: #4410 (-166)
15K → 20K
21:05 | 6:47/mi
Half· 13.11 mi
1:27:01
Rank: #4460 (-50)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:44:19
Rank: #4937 (-477)
Half → 25K
17:18 | 7:08/mi
30K· 18.64 mi
2:08:18
Rank: #5840 (-903)
25K → 30K
23:59 | 7:43/mi
20M
2:19:11
Rank: #6124 (-284)
30K → 20M
10:53 | 8:01/mi
21M
2:27:46
Rank: #6305 (-181)
20M → 21M
8:35 | 8:35/mi
35K· 21.75 mi
2:34:16
Rank: #6578 (-273)
21M → 35K
6:30 | 8:41/mi
23M
2:45:39
Rank: #7120 (-542)
35K → 23M
11:23 | 9:05/mi
24M
2:53:20
Rank: #7149 (-29)
23M → 24M
7:41 | 7:41/mi
40K· 24.85 mi
3:01:03
Rank: #7460 (-311)
24M → 40K
7:43 | 9:02/mi
25.2M
3:04:05
Rank: #7506 (-46)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
3:12:02
Rank: #7618 (-112)
25.2M → Finish
7:57 | 7:48/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:01
Pace6:38 /mi
2nd Half
Distance13.11 mi
Time1:45:01
Pace8:01 /mi
📊Positive Split: 20.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:0920:086:2920:08
6:29
-
10K
6.21 mi10:42:4040:396:3320:31
6:36
+0:07
15K
9.32 mi11:03:201:01:196:3520:40
6:39
+0:03
20K
12.43 mi11:24:251:22:246:3821:05
6:47
+0:08
Half
13.11 mi11:29:021:27:016:384:37
6:46
-0:01
25K
15.53 mi11:46:201:44:196:4317:18
7:08
+0:22
30K
18.64 mi12:10:192:08:186:5323:59
7:43
+0:35
20M
20.00 mi12:21:122:19:116:5810:53
8:01
+0:18
21M
21.00 mi12:29:472:27:467:028:35
8:35
+0:34
35K
21.75 mi12:36:172:34:167:066:30
8:41
+0:06
23M
23.00 mi12:47:402:45:397:1211:23
9:05
+0:24
24M
24.00 mi12:55:212:53:207:137:41
7:41
-1:24
40K
24.85 mi13:03:043:01:037:177:43
9:02
+1:21
25.2M
25.20 mi13:06:063:04:057:183:02
8:48
-0:14
Finish
26.22 mi13:14:033:12:027:207:57
7:48
-1:00

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

6:29 /mi

Average Pace

7:20 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:19

54% of race

Time at Steady Pace

50:30

26% of race

Time at Slower Pace

37:13

19% of race

Average Pace: 7:19 /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 mi10:22:0920:086:2920:08
6:29
#3694
10K
6.21 mi10:42:4040:396:3320:31
6:36
#4080
15K
9.32 mi11:03:201:01:196:3520:40
6:39
#4244
20K
12.43 mi11:24:251:22:246:3821:05
6:47
#4410
Half
13.11 mi11:29:021:27:016:384:37
6:46
#4460
25K
15.53 mi11:46:201:44:196:4317:18
7:08
#4937
30K
18.64 mi12:10:192:08:186:5323:59
7:43
#5840
20M
20.00 mi12:21:122:19:116:5810:53
8:01
#6124
21M
21.00 mi12:29:472:27:467:028:35
8:35
#6305
35K
21.75 mi12:36:172:34:167:066:30
8:41
#6578
23M
23.00 mi12:47:402:45:397:1211:23
9:05
#7120
24M
24.00 mi12:55:212:53:207:137:41
7:41
#7149
40K
24.85 mi13:03:043:01:037:177:43
9:02
#7460
25.2M
25.20 mi13:06:063:04:057:183:02
8:48
#7506
Finish
26.22 mi13:14:033:12:027:207:57
7:48
#7618
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi3694350035004662(Top 16%)4363(Top 27%)4363(Top 219%)
10K6.21 mi3.10 mi4080-3863847-3473847-3474504(Top 16%)4220(Top 26%)4220(Top 211%)
15K9.32 mi3.11 mi4244-1643992-1453992-1454662(Top 16%)4363(Top 27%)4363(Top 219%)
20K12.43 mi3.11 mi4410-1664137-1454137-1455167(Top 18%)4762(Top 30%)4762(Top 239%)
Half13.11 mi0.68 mi4460-504181-444181-445824(Top 21%)5311(Top 33%)5311(Top 266%)
25K15.53 mi2.42 mi4937-4774587-4064587-4067184(Top 25%)6243(Top 39%)6243(Top 313%)
30K18.64 mi3.11 mi5840-9035315-7285315-7289304(Top 33%)7312(Top 45%)7312(Top 366%)
20M20.00 mi1.36 mi6124-2845515-2005515-20010472(Top 37%)7765(Top 48%)7765(Top 389%)
21M21.00 mi1.00 mi6305-1815648-1335648-13310953(Top 39%)7840(Top 49%)7840(Top 393%)
35K21.75 mi0.75 mi6578-2735828-1805828-18016558(Top 58%)10406(Top 65%)10406(Top 521%)
23M23.00 mi1.25 mi7120-5426175-3476175-34716742(Top 59%)10391(Top 65%)10391(Top 521%)
24M24.00 mi1.00 mi7149-296163+126163+128976(Top 32%)6627(Top 41%)6627(Top 332%)
40K24.85 mi0.85 mi7460-3116327-1646327-16416403(Top 58%)10086(Top 63%)10086(Top 505%)
25.2M25.20 mi0.35 mi7506-466344-176344-1710471(Top 37%)7163(Top 44%)7163(Top 359%)
Finish26.22 mi1.02 mi7618-1126383-396383-3911400(Top 40%)7695(Top 48%)7695(Top 386%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4662

Males

4363

M50-54

4363

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4504

Males

4220

M50-54

4220

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4662

Males

4363

M50-54

4363

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

5167

Males

4762

M50-54

4762

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5824

Males

5311

M50-54

5311

Half→25K

13.1 - 15.5 mi

Top 25%
×4stories
+66ft-88ft

Overall

7184

Males

6243

M50-54

6243

25K→30K

15.5 - 18.6 mi

Top 33%
×9stories
+181ft-148ft

Overall

9304

Males

7312

M50-54

7312

30K→20M

18.6 - 20.0 mi

Top 37%
×5stories
+64ft-50ft

Overall

10472

Males

7765

M50-54

7765

20M→21M

20.0 - 21.0 mi

Top 39%
×8stories
+106ft-24ft

Overall

10953

Males

7840

M50-54

7840

21M→35K

21.0 - 21.8 mi

Top 58%
×7stories
+17ft-86ft

Overall

16558

Males

10406

M50-54

10406

35K→23M

21.8 - 23.0 mi

Top 59%
×5stories
+23ft-63ft

Overall

16742

Males

10391

M50-54

10391

23M→24M

23.0 - 24.0 mi

Top 32%
×6stories
+12ft-82ft

Overall

8976

Males

6627

M50-54

6627

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16403

Males

10086

M50-54

10086

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

10471

Males

7163

M50-54

7163

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2stories
+22ft-21ft

Overall

11400

Males

7695

M50-54

7695

Passing Analysis

Category:
Athletes Passed
426
Passed By
4350
Net Change
-3924
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3694
5K → 10K40426-386#3694#4080
10K → 15K45209-164#4080#4244
15K → 20K55221-166#4244#4410
20K → Half454-50#4410#4460
Half → 25K38515-477#4460#4937
25K → 30K48951-903#4937#5840
30K → 20M18302-284#5840#6124
20M → 21M28209-181#6124#6305
21M → 35K12285-273#6305#6578
35K → 23M20562-542#6578#7120
23M → 24M5887-29#7120#7149
24M → 40K13324-311#7149#7460
40K → 25.2M1561-46#7460#7506
25.2M → Finish32144-112#7506#7618
TOTALS4264350-3924
📊

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