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BOSTON MARATHON 2025

Tamar Knoller

Bib: 18001•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 47%
Division (F40-44)
#0 / 1718
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
7:54/mi
24:33
↑ 97↓ 3451.5%
10K· 6.21 mi
8:15/mi
50:12
↑ 79↓ 1380.4%
15K· 9.32 mi
8:17/mi
1:15:57
↑ 67↓ 78
20K· 12.43 mi
8:19/mi
1:41:47
↑ 106↓ 860.1%
Half· 13.11 mi
7:58/mi
1:47:13
↑ 19↓ 370.5%
25K· 15.53 mi
8:52/mi
2:08:44
↑ 66↓ 880.2%
30K· 18.64 mi
9:24/mi
2:37:56
↑ 181↓ 1480.2%
20M
10:00/mi
2:51:32
↑ 64↓ 500.2%
21M
10:55/mi
3:02:27
↑ 106↓ 241.6%
35K· 21.75 mi
8:43/mi
3:08:58
↑ 17↓ 861.7%
23M
9:40/mi
3:21:04
↑ 23↓ 630.6%
24M
8:46/mi
3:29:50
↓ 821.3%
40K· 24.85 mi
9:30/mi
3:37:57
↓ 200.3%
25.2M
11:48/mi
3:42:01
↑ 13↓ 160.2%
Finish· 26.22 mi
8:16/mi
3:50:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:13
Pace8:11 /mi
2nd Half
Distance13.11 mi
Time2:03:13
Pace9:24 /mi
📊Positive Split: 14.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:3624:337:5424:33
7:54
-
10K
6.21 mi11:40:1550:128:0525:39
8:15
+0:21
15K
9.32 mi12:06:001:15:578:0925:45
8:17
+0:02
20K
12.43 mi12:31:501:41:478:1125:50
8:19
+0:02
Half
13.11 mi12:37:161:47:138:115:26
7:58
-0:21
25K
15.53 mi12:58:472:08:448:1721:31
8:52
+0:54
30K
18.64 mi13:27:592:37:568:2829:12
9:24
+0:32
20M
20.00 mi13:41:352:51:328:3513:36
10:00
+0:36
21M
21.00 mi13:52:303:02:278:4110:55
10:55
+0:55
35K
21.75 mi13:59:013:08:588:416:31
8:43
-2:12
23M
23.00 mi14:11:073:21:048:4512:06
9:40
+0:57
24M
24.00 mi14:19:533:29:508:458:46
8:46
-0:54
40K
24.85 mi14:28:003:37:578:468:07
9:30
+0:44
25.2M
25.20 mi14:32:043:42:018:494:04
11:48
+2:18
Finish
26.22 mi14:40:293:50:268:488:25
8:16
-3:32

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

7:54 /mi

Average Pace

8:48 /mi

Slowest Pace

11:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

29:59

13% of race

Time at Steady Pace

2:02:27

53% of race

Time at Slower Pace

1:18:00

34% of race

Average Pace: 8:47 /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 mi11:14:3624:337:5424:33
7:54
#15729
10K
6.21 mi11:40:1550:128:0525:39
8:15
#17118
15K
9.32 mi12:06:001:15:578:0925:45
8:17
#17426
20K
12.43 mi12:31:501:41:478:1125:50
8:19
#17284
Half
13.11 mi12:37:161:47:138:115:26
7:58
#17192
25K
15.53 mi12:58:472:08:448:1721:31
8:52
#17520
30K
18.64 mi13:27:592:37:568:2829:12
9:24
#17925
20M
20.00 mi13:41:352:51:328:3513:36
10:00
#18280
21M
21.00 mi13:52:303:02:278:4110:55
10:55
#18546
35K
21.75 mi13:59:013:08:588:416:31
8:43
#18476
23M
23.00 mi14:11:073:21:048:4512:06
9:40
#18537
24M
24.00 mi14:19:533:29:508:458:46
8:46
#18402
40K
24.85 mi14:28:003:37:578:468:07
9:30
#18425
25.2M
25.20 mi14:32:043:42:018:494:04
11:48
#18548
Finish
26.22 mi14:40:293:50:268:488:25
8:16
#18418
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi157294981498117982(Top 63%)6309(Top 52%)6309(Top 367%)
10K6.21 mi3.10 mi17118-13895798-8175798-81718279(Top 64%)6475(Top 53%)6475(Top 377%)
15K9.32 mi3.11 mi17426-3085968-1705968-17017982(Top 63%)6309(Top 52%)6309(Top 367%)
20K12.43 mi3.11 mi17284+1425908+605908+6017025(Top 60%)5792(Top 47%)5792(Top 337%)
Half13.11 mi0.68 mi17192+925857+515857+5115708(Top 55%)5028(Top 41%)5028(Top 293%)
25K15.53 mi2.42 mi17520-3286071-2146071-21419310(Top 68%)7147(Top 58%)7147(Top 416%)
30K18.64 mi3.11 mi17925-4056357-2866357-28619532(Top 69%)7410(Top 61%)7410(Top 431%)
20M20.00 mi1.36 mi18280-3556573-2166573-21620969(Top 74%)8337(Top 68%)8337(Top 485%)
21M21.00 mi1.00 mi18546-2666749-1766749-17621172(Top 75%)8533(Top 70%)8533(Top 497%)
35K21.75 mi0.75 mi18476+706725+246725+2416799(Top 59%)6223(Top 51%)6223(Top 362%)
23M23.00 mi1.25 mi18537-616788-636788-6319331(Top 68%)7690(Top 63%)7690(Top 448%)
24M24.00 mi1.00 mi18402+1356737+516737+5116164(Top 57%)6033(Top 49%)6033(Top 351%)
40K24.85 mi0.85 mi18425-236779-426779-4218698(Top 66%)7474(Top 61%)7474(Top 435%)
25.2M25.20 mi0.35 mi18548-1236864-856864-8522776(Top 80%)9544(Top 78%)9544(Top 556%)
Finish26.22 mi1.02 mi18418+1306817+476817+4714710(Top 52%)5331(Top 44%)5331(Top 310%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21story building
+97ft-345ft

Overall

17982

Females

6309

F40-44

6309

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

18279

Females

6475

F40-44

6475

10K→15K

6.2 - 9.3 mi

Top 63%
×3story building
+67ft-78ft

Overall

17982

Females

6309

F40-44

6309

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

17025

Females

5792

F40-44

5792

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

15708

Females

5028

F40-44

5028

Half→25K

13.1 - 15.5 mi

Top 68%
×4story building
+66ft-88ft

Overall

19310

Females

7147

F40-44

7147

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

19532

Females

7410

F40-44

7410

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

20969

Females

8337

F40-44

8337

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

21172

Females

8533

F40-44

8533

21M→35K

21.0 - 21.8 mi

Top 59%
×7story building
+17ft-86ft

Overall

16799

Females

6223

F40-44

6223

35K→23M

21.8 - 23.0 mi

Top 68%
×5story building
+23ft-63ft

Overall

19331

Females

7690

F40-44

7690

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

16164

Females

6033

F40-44

6033

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18698

Females

7474

F40-44

7474

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

22776

Females

9544

F40-44

9544

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

14710

Females

5331

F40-44

5331

Passing Analysis

Category:
Athletes Passed
1332
Passed By
4021
Net Change
-2689
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15729
5K → 10K371426-1389#15729#17118
10K → 15K104412-308#17118#17426
15K → 20K251109+142#17426#17284
20K → Half964+92#17284#17192
Half → 25K95423-328#17192#17520
25K → 30K114519-405#17520#17925
30K → 20M48403-355#17925#18280
20M → 21M43309-266#18280#18546
21M → 35K9121+70#18546#18476
35K → 23M89150-61#18476#18537
23M → 24M15217+135#18537#18402
24M → 40K6386-23#18402#18425
40K → 25.2M8131-123#18425#18548
25.2M → Finish14111+130#18548#18418
TOTALS13324021-2689
📊

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