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BOSTON MARATHON 2025

Tiffany Bresler

Bib: 21654•F

MO

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 44%
Gender (Female)
#0 / 12228
Top 29%
Masters (Masters Women)
#0 / 6759
Top 14%
Division (F50-54)
#0 / 1303
Top 8%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:08
Rank: #17277
Start → 5K
8:05/mi
25:08 split
10K· 6.21 mi
49:54
Rank: #16761 (+516)
5K → 10K
7:58/mi
24:46 split
15K· 9.32 mi
1:14:43
Rank: #16458 (+303)
10K → 15K
7:59/mi
24:49 split
20K· 12.43 mi
1:39:40
Rank: #16086 (+372)
15K → 20K
8:02/mi
24:57 split
Half· 13.11 mi
1:45:06
Rank: #16073 (+13)
20K → Half
7:58/mi
5:26 split
25K· 15.53 mi
2:04:21
Rank: #15582 (+491)
Half → 25K
7:56/mi
19:15 split
30K· 18.64 mi
2:29:11
Rank: #14762 (+820)
25K → 30K
8:00/mi
24:50 split
20M
2:40:02
Rank: #14338 (+424)
30K → 20M
7:59/mi
10:51 split
21M
2:48:21
Rank: #13976 (+362)
20M → 21M
8:19/mi
8:19 split
35K· 21.75 mi
2:54:04
Rank: #13804 (+172)
21M → 35K
7:38/mi
5:43 split
23M
3:03:38
Rank: #13402 (+402)
35K → 23M
7:38/mi
9:34 split
24M
3:11:04
Rank: #13118 (+284)
23M → 24M
7:26/mi
7:26 split
40K· 24.85 mi
3:17:34
Rank: #12885 (+233)
24M → 40K
7:36/mi
6:30 split
25.2M
3:20:26
Rank: #12787 (+98)
40K → 25.2M
8:19/mi
2:52 split
Finish· 26.22 mi
3:27:57
Rank: #12569 (+218)
25.2M → Finish
7:23/mi
7:31 split

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:45:06
Pace8:01 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:42:51
Pace7:51 /mi
📊Negative Split: 2.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3425:088:0525:08
8:05
-
10K
6.21 mi11:45:2049:548:0224:46
7:58
-0:07
15K
9.32 mi12:10:091:14:438:0124:49
7:59
+0:01
20K
12.43 mi12:35:061:39:408:0124:57
8:02
+0:03
Half
13.11 mi12:40:321:45:068:015:26
7:58
-0:04
25K
15.53 mi12:59:472:04:218:0019:15
7:56
-0:02
30K
18.64 mi13:24:372:29:118:0024:50
8:00
+0:04
20M
20.00 mi13:35:282:40:028:0010:51
7:59
-0:01
21M
21.00 mi13:43:472:48:218:018:19
8:19
+0:20
35K
21.75 mi13:49:302:54:048:005:43
7:38
-0:41
23M
23.00 mi13:59:043:03:387:599:34
7:38
0:00
24M
24.00 mi14:06:303:11:047:587:26
7:26
-0:12
40K
24.85 mi14:13:003:17:347:576:30
7:36
+0:10
25.2M
25.20 mi14:15:523:20:267:572:52
8:19
+0:43
Finish
26.22 mi14:23:233:27:577:567:31
7:23
-0:56

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

7:23 /mi

Average Pace

7:56 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:16:46

95% of race

Time at Steady Pace

11:11

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:56 /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 mi11:20:3425:088:0525:08
8:05
#17277
10K
6.21 mi11:45:2049:548:0224:46
7:58
#16761
15K
9.32 mi12:10:091:14:438:0124:49
7:59
#16458
20K
12.43 mi12:35:061:39:408:0124:57
8:02
#16086
Half
13.11 mi12:40:321:45:068:015:26
7:58
#16073
25K
15.53 mi12:59:472:04:218:0019:15
7:56
#15582
30K
18.64 mi13:24:372:29:118:0024:50
8:00
#14762
20M
20.00 mi13:35:282:40:028:0010:51
7:59
#14338
21M
21.00 mi13:43:472:48:218:018:19
8:19
#13976
35K
21.75 mi13:49:302:54:048:005:43
7:38
#13804
23M
23.00 mi13:59:043:03:387:599:34
7:38
#13402
24M
24.00 mi14:06:303:11:047:587:26
7:26
#13118
40K
24.85 mi14:13:003:17:347:576:30
7:36
#12885
25.2M
25.20 mi14:15:523:20:267:572:52
8:19
#12787
Finish
26.22 mi14:23:233:27:577:567:31
7:23
#12569
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi172775903590315958(Top 56%)5113(Top 42%)5113(Top 392%)
10K6.21 mi3.10 mi16761+5165589+3145589+31416244(Top 57%)5269(Top 43%)5269(Top 404%)
15K9.32 mi3.11 mi16458+3035410+1795410+17915958(Top 56%)5113(Top 42%)5113(Top 392%)
20K12.43 mi3.11 mi16086+3725204+2065204+20615152(Top 53%)4719(Top 39%)4719(Top 362%)
Half13.11 mi0.68 mi16073+135194+105194+1015610(Top 55%)4930(Top 40%)4930(Top 378%)
25K15.53 mi2.42 mi15582+4914932+2624932+26213423(Top 47%)3890(Top 32%)3890(Top 299%)
30K18.64 mi3.11 mi14762+8204537+3954537+39511345(Top 40%)2956(Top 24%)2956(Top 227%)
20M20.00 mi1.36 mi14338+4244321+2164321+21610381(Top 37%)2632(Top 22%)2632(Top 202%)
21M21.00 mi1.00 mi13976+3624151+1704151+1709378(Top 33%)2337(Top 19%)2337(Top 179%)
35K21.75 mi0.75 mi13804+1724079+724079+729708(Top 34%)2483(Top 20%)2483(Top 191%)
23M23.00 mi1.25 mi13402+4023899+1803899+1807559(Top 27%)1650(Top 13%)1650(Top 127%)
24M24.00 mi1.00 mi13118+2843772+1273772+1277304(Top 26%)1593(Top 13%)1593(Top 122%)
40K24.85 mi0.85 mi12885+2333670+1023670+1027490(Top 26%)1768(Top 14%)1768(Top 136%)
25.2M25.20 mi0.35 mi12787+983623+473623+477821(Top 28%)2010(Top 16%)2010(Top 154%)
Finish26.22 mi1.02 mi12569+2183535+883535+888369(Top 29%)2231(Top 18%)2231(Top 171%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

15958

Females

5113

F50-54

5113

5K→10K

3.1 - 6.2 mi

Top 57%
×5story building
+79ft-138ft

Overall

16244

Females

5269

F50-54

5269

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

15958

Females

5113

F50-54

5113

15K→20K

9.3 - 12.4 mi

Top 53%
×5story building
+106ft-86ft

Overall

15152

Females

4719

F50-54

4719

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

15610

Females

4930

F50-54

4930

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

13423

Females

3890

F50-54

3890

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

11345

Females

2956

F50-54

2956

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

10381

Females

2632

F50-54

2632

20M→21M

20.0 - 21.0 mi

Top 33%
×8story building
+106ft-24ft

Overall

9378

Females

2337

F50-54

2337

21M→35K

21.0 - 21.8 mi

Top 34%
×7story building
+17ft-86ft

Overall

9708

Females

2483

F50-54

2483

35K→23M

21.8 - 23.0 mi

Top 27%
×5story building
+23ft-63ft

Overall

7559

Females

1650

F50-54

1650

23M→24M

23.0 - 24.0 mi

Top 26%
×6story building
+12ft-82ft

Overall

7304

Females

1593

F50-54

1593

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7490

Females

1768

F50-54

1768

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7821

Females

2010

F50-54

2010

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

8369

Females

2231

F50-54

2231

Passing Analysis

Category:
Athletes Passed
5009
Passed By
301
Net Change
+4708
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17277
5K → 10K631115+516#17277#16761
10K → 15K37673+303#16761#16458
15K → 20K42654+372#16458#16086
20K → Half4027+13#16086#16073
Half → 25K4965+491#16073#15582
25K → 30K8288+820#15582#14762
30K → 20M4262+424#14762#14338
20M → 21M3642+362#14338#13976
21M → 35K1753+172#13976#13804
35K → 23M4020+402#13804#13402
23M → 24M2851+284#13402#13118
24M → 40K2363+233#13118#12885
40K → 25.2M1013+98#12885#12787
25.2M → Finish2235+218#12787#12569
TOTALS5009301+4708
📊

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