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BOSTON MARATHON 2025

Renee Brazzo

Bib: 21128•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 42%
Masters (Masters Women)
#0 / 6759
Top 28%
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:41
Rank: #18513
Start → 5K
25:41 | 8:16/mi
10K· 6.21 mi
51:22
Rank: #18419 (+94)
5K → 10K
25:41 | 8:16/mi
15K· 9.32 mi
1:16:41
Rank: #17941 (+478)
10K → 15K
25:19 | 8:09/mi
20K· 12.43 mi
1:41:56
Rank: #17359 (+582)
15K → 20K
25:15 | 8:08/mi
Half· 13.11 mi
1:47:26
Rank: #17297 (+62)
20K → Half
5:30 | 8:04/mi
25K· 15.53 mi
2:07:17
Rank: #16917 (+380)
Half → 25K
19:51 | 8:11/mi
30K· 18.64 mi
2:33:19
Rank: #16374 (+543)
25K → 30K
26:02 | 8:23/mi
20M
2:44:46
Rank: #16129 (+245)
30K → 20M
11:27 | 8:26/mi
21M
2:53:54
Rank: #15954 (+175)
20M → 21M
9:08 | 9:08/mi
35K· 21.75 mi
3:00:17
Rank: #15901 (+53)
21M → 35K
6:23 | 8:32/mi
23M
3:11:03
Rank: #15731 (+170)
35K → 23M
10:46 | 8:36/mi
24M
3:19:32
Rank: #15662 (+69)
23M → 24M
8:29 | 8:29/mi
40K· 24.85 mi
3:26:36
Rank: #15502 (+160)
24M → 40K
7:04 | 8:16/mi
25.2M
3:29:45
Rank: #15451 (+51)
40K → 25.2M
3:09 | 9:08/mi
Finish· 26.22 mi
3:37:56
Rank: #15368 (+83)
25.2M → Finish
8:11 | 8:02/mi

The Course

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:26
Pace8:12 /mi
2nd Half
Distance13.11 mi
Time1:50:30
Pace8:26 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:2825:418:1625:41
8:16
-
10K
6.21 mi11:44:0951:228:1625:41
8:16
0:00
15K
9.32 mi12:09:281:16:418:1425:19
8:09
-0:07
20K
12.43 mi12:34:431:41:568:1225:15
8:08
-0:01
Half
13.11 mi12:40:131:47:268:125:30
8:04
-0:04
25K
15.53 mi13:00:042:07:178:1219:51
8:11
+0:07
30K
18.64 mi13:26:062:33:198:1326:02
8:23
+0:12
20M
20.00 mi13:37:332:44:468:1411:27
8:26
+0:03
21M
21.00 mi13:46:412:53:548:179:08
9:08
+0:42
35K
21.75 mi13:53:043:00:178:176:23
8:32
-0:36
23M
23.00 mi14:03:503:11:038:1810:46
8:36
+0:04
24M
24.00 mi14:12:193:19:328:198:29
8:29
-0:07
40K
24.85 mi14:19:233:26:368:197:04
8:16
-0:13
25.2M
25.20 mi14:22:323:29:458:193:09
9:08
+0:52
Finish
26.22 mi14:30:433:37:568:198:11
8:02
-1:06

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

8:02 /mi

Average Pace

8:19 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:25:39

94% of race

Time at Steady Pace

12:17

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:19 /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 mi11:18:2825:418:1625:41
8:16
#18513
10K
6.21 mi11:44:0951:228:1625:41
8:16
#18419
15K
9.32 mi12:09:281:16:418:1425:19
8:09
#17941
20K
12.43 mi12:34:431:41:568:1225:15
8:08
#17359
Half
13.11 mi12:40:131:47:268:125:30
8:04
#17297
25K
15.53 mi13:00:042:07:178:1219:51
8:11
#16917
30K
18.64 mi13:26:062:33:198:1326:02
8:23
#16374
20M
20.00 mi13:37:332:44:468:1411:27
8:26
#16129
21M
21.00 mi13:46:412:53:548:179:08
9:08
#15954
35K
21.75 mi13:53:043:00:178:176:23
8:32
#15901
23M
23.00 mi14:03:503:11:038:1810:46
8:36
#15731
24M
24.00 mi14:12:193:19:328:198:29
8:29
#15662
40K
24.85 mi14:19:233:26:368:197:04
8:16
#15502
25.2M
25.20 mi14:22:323:29:458:193:09
9:08
#15451
Finish
26.22 mi14:30:433:37:568:198:11
8:02
#15368
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi185136633663317080(Top 60%)5776(Top 47%)5776(Top 336%)
10K6.21 mi3.10 mi18419+946566+676566+6718344(Top 65%)6510(Top 53%)6510(Top 379%)
15K9.32 mi3.11 mi17941+4786288+2786288+27817080(Top 60%)5776(Top 47%)5776(Top 336%)
20K12.43 mi3.11 mi17359+5825952+3365952+33615850(Top 56%)5129(Top 42%)5129(Top 299%)
Half13.11 mi0.68 mi17297+625923+295923+2916407(Top 58%)5412(Top 44%)5412(Top 315%)
25K15.53 mi2.42 mi16917+3805715+2085715+20815248(Top 54%)4876(Top 40%)4876(Top 284%)
30K18.64 mi3.11 mi16374+5435457+2585457+25814029(Top 49%)4388(Top 36%)4388(Top 255%)
20M20.00 mi1.36 mi16129+2455341+1165341+11613350(Top 47%)4174(Top 34%)4174(Top 243%)
21M21.00 mi1.00 mi15954+1755277+645277+6414293(Top 50%)4786(Top 39%)4786(Top 279%)
35K21.75 mi0.75 mi15901+535267+105267+1015687(Top 55%)5605(Top 46%)5605(Top 326%)
23M23.00 mi1.25 mi15731+1705210+575210+5713945(Top 49%)4775(Top 39%)4775(Top 278%)
24M24.00 mi1.00 mi15662+695185+255185+2514417(Top 51%)5044(Top 41%)5044(Top 294%)
40K24.85 mi0.85 mi15502+1605129+565129+5612007(Top 42%)3928(Top 32%)3928(Top 229%)
25.2M25.20 mi0.35 mi15451+515111+185111+1812649(Top 45%)4328(Top 35%)4328(Top 252%)
Finish26.22 mi1.02 mi15368+835087+245087+2413120(Top 46%)4508(Top 37%)4508(Top 262%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21stories
+97ft-345ft

Overall

17080

Females

5776

F40-44

5776

5K→10K

3.1 - 6.2 mi

Top 65%
×5stories
+79ft-138ft

Overall

18344

Females

6510

F40-44

6510

10K→15K

6.2 - 9.3 mi

Top 60%
×3stories
+67ft-78ft

Overall

17080

Females

5776

F40-44

5776

15K→20K

9.3 - 12.4 mi

Top 56%
×5stories
+106ft-86ft

Overall

15850

Females

5129

F40-44

5129

20K→Half

12.4 - 13.1 mi

Top 58%
×2stories
+19ft-37ft

Overall

16407

Females

5412

F40-44

5412

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

15248

Females

4876

F40-44

4876

25K→30K

15.5 - 18.6 mi

Top 49%
×9stories
+181ft-148ft

Overall

14029

Females

4388

F40-44

4388

30K→20M

18.6 - 20.0 mi

Top 47%
×5stories
+64ft-50ft

Overall

13350

Females

4174

F40-44

4174

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

14293

Females

4786

F40-44

4786

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

15687

Females

5605

F40-44

5605

35K→23M

21.8 - 23.0 mi

Top 49%
×5stories
+23ft-63ft

Overall

13945

Females

4775

F40-44

4775

23M→24M

23.0 - 24.0 mi

Top 51%
×6stories
+12ft-82ft

Overall

14417

Females

5044

F40-44

5044

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

12007

Females

3928

F40-44

3928

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12649

Females

4328

F40-44

4328

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2stories
+22ft-21ft

Overall

13120

Females

4508

F40-44

4508

Passing Analysis

Category:
Athletes Passed
3607
Passed By
462
Net Change
+3145
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18513
5K → 10K303209+94#18513#18419
10K → 15K50527+478#18419#17941
15K → 20K59311+582#17941#17359
20K → Half7311+62#17359#17297
Half → 25K39414+380#17297#16917
25K → 30K57330+543#16917#16374
30K → 20M2549+245#16374#16129
20M → 21M19823+175#16129#15954
21M → 35K9340+53#15954#15901
35K → 23M20030+170#15901#15731
23M → 24M9829+69#15731#15662
24M → 40K1633+160#15662#15502
40K → 25.2M609+51#15502#15451
25.2M → Finish10017+83#15451#15368
TOTALS3607462+3145
📊

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