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BOSTON MARATHON 2025

Elise Brennan

Bib: 12409•F

NS

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 28%
Gender (Female)
#0 / 12228
Top 11%
Division (F18-39)
#0 / 5469
Top 20%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:16
Rank: #6677
Start → 5K
21:16 | 6:51/mi
10K· 6.21 mi
42:37
Rank: #6841 (-164)
5K → 10K
21:21 | 6:52/mi
15K· 9.32 mi
1:04:02
Rank: #6830 (+11)
10K → 15K
21:25 | 6:54/mi
20K· 12.43 mi
1:25:43
Rank: #6800 (+30)
15K → 20K
21:41 | 6:59/mi
Half· 13.11 mi
1:30:24
Rank: #6801 (-1)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:47:15
Rank: #6605 (+196)
Half → 25K
16:51 | 6:57/mi
30K· 18.64 mi
2:10:18
Rank: #6599 (+6)
25K → 30K
23:03 | 7:25/mi
20M
2:22:12
Rank: #7134 (-535)
30K → 20M
11:54 | 8:45/mi
21M
2:29:59
Rank: #7009 (+125)
20M → 21M
7:47 | 7:47/mi
35K· 21.75 mi
2:35:36
Rank: #7035 (-26)
21M → 35K
5:37 | 7:30/mi
23M
2:46:03
Rank: #7235 (-200)
35K → 23M
10:27 | 8:21/mi
24M
2:54:00
Rank: #7356 (-121)
23M → 24M
7:57 | 7:57/mi
40K· 24.85 mi
3:01:03
Rank: #7463 (-107)
24M → 40K
7:03 | 8:15/mi
25.2M
3:05:01
Rank: #7783 (-320)
40K → 25.2M
3:58 | 11:30/mi
Finish· 26.22 mi
3:13:04
Rank: #7925 (-142)
25.2M → Finish
8:03 | 7:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:24
Pace6:54 /mi
2nd Half
Distance13.11 mi
Time1:42:40
Pace7:50 /mi
📊Positive Split: 13.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:3121:166:5121:16
6:51
-
10K
6.21 mi11:10:5242:376:5221:21
6:52
+0:01
15K
9.32 mi11:32:171:04:026:5221:25
6:54
+0:02
20K
12.43 mi11:53:581:25:436:5421:41
6:59
+0:05
Half
13.11 mi11:58:391:30:246:544:41
6:52
-0:07
25K
15.53 mi12:15:301:47:156:5416:51
6:57
+0:05
30K
18.64 mi12:38:332:10:186:5923:03
7:25
+0:28
20M
20.00 mi12:50:272:22:127:0711:54
8:45
+1:20
21M
21.00 mi12:58:142:29:597:097:47
7:47
-0:58
35K
21.75 mi13:03:512:35:367:095:37
7:30
-0:17
23M
23.00 mi13:14:182:46:037:1310:27
8:21
+0:51
24M
24.00 mi13:22:152:54:007:157:57
7:57
-0:24
40K
24.85 mi13:29:183:01:037:177:03
8:15
+0:18
25.2M
25.20 mi13:33:163:05:017:213:58
11:30
+3:15
Finish
26.22 mi13:41:193:13:047:228:03
7:54
-3:36

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

6:51 /mi

Average Pace

7:22 /mi

Slowest Pace

11:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:08:43

36% of race

Time at Steady Pace

1:30:59

47% of race

Time at Slower Pace

33:22

17% of race

Average Pace: 7:22 /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 mi10:49:3121:166:5121:16
6:51
#6677
10K
6.21 mi11:10:5242:376:5221:21
6:52
#6841
15K
9.32 mi11:32:171:04:026:5221:25
6:54
#6830
20K
12.43 mi11:53:581:25:436:5421:41
6:59
#6800
Half
13.11 mi11:58:391:30:246:544:41
6:52
#6801
25K
15.53 mi12:15:301:47:156:5416:51
6:57
#6605
30K
18.64 mi12:38:332:10:186:5923:03
7:25
#6599
20M
20.00 mi12:50:272:22:127:0711:54
8:45
#7134
21M
21.00 mi12:58:142:29:597:097:47
7:47
#7009
35K
21.75 mi13:03:512:35:367:095:37
7:30
#7035
23M
23.00 mi13:14:182:46:037:1310:27
8:21
#7235
24M
24.00 mi13:22:152:54:007:157:57
7:57
#7356
40K
24.85 mi13:29:183:01:037:177:03
8:15
#7463
25.2M
25.20 mi13:33:163:05:017:213:58
11:30
#7783
Finish
26.22 mi13:41:193:13:047:228:03
7:54
#7925
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi66776096096923(Top 24%)714(Top 6%)714(Top 13%)
10K6.21 mi3.10 mi6841-164661-52661-527058(Top 25%)723(Top 6%)723(Top 13%)
15K9.32 mi3.11 mi6830+11673-12673-126923(Top 24%)714(Top 6%)714(Top 13%)
20K12.43 mi3.11 mi6800+30658+15658+156760(Top 24%)721(Top 6%)721(Top 13%)
Half13.11 mi0.68 mi6801-1661-3661-36738(Top 24%)716(Top 6%)716(Top 13%)
25K15.53 mi2.42 mi6605+196639+22639+226005(Top 21%)593(Top 5%)593(Top 11%)
30K18.64 mi3.11 mi6599+6676-37676-377181(Top 25%)1091(Top 9%)1091(Top 20%)
20M20.00 mi1.36 mi7134-535838-162838-16215418(Top 54%)5268(Top 43%)5268(Top 96%)
21M21.00 mi1.00 mi7009+125832+6832+66130(Top 22%)975(Top 8%)975(Top 18%)
35K21.75 mi0.75 mi7035-26858-26858-268697(Top 31%)1976(Top 16%)1976(Top 36%)
23M23.00 mi1.25 mi7235-200969-111969-11112320(Top 43%)3903(Top 32%)3903(Top 71%)
24M24.00 mi1.00 mi7356-1211044-751044-7510895(Top 38%)3237(Top 26%)3237(Top 59%)
40K24.85 mi0.85 mi7463-1071117-731117-7311832(Top 42%)3819(Top 31%)3819(Top 70%)
25.2M25.20 mi0.35 mi7783-3201244-1271244-12722060(Top 78%)9170(Top 75%)9170(Top 168%)
Finish26.22 mi1.02 mi7925-1421324-801324-8012165(Top 43%)4002(Top 33%)4002(Top 73%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21stories
+97ft-345ft

Overall

6923

Females

714

F18-39

714

5K→10K

3.1 - 6.2 mi

Top 25%
×5stories
+79ft-138ft

Overall

7058

Females

723

F18-39

723

10K→15K

6.2 - 9.3 mi

Top 24%
×3stories
+67ft-78ft

Overall

6923

Females

714

F18-39

714

15K→20K

9.3 - 12.4 mi

Top 24%
×5stories
+106ft-86ft

Overall

6760

Females

721

F18-39

721

20K→Half

12.4 - 13.1 mi

Top 24%
×2stories
+19ft-37ft

Overall

6738

Females

716

F18-39

716

Half→25K

13.1 - 15.5 mi

Top 21%
×4stories
+66ft-88ft

Overall

6005

Females

593

F18-39

593

25K→30K

15.5 - 18.6 mi

Top 25%
×9stories
+181ft-148ft

Overall

7181

Females

1091

F18-39

1091

30K→20M

18.6 - 20.0 mi

Top 54%
×5stories
+64ft-50ft

Overall

15418

Females

5268

F18-39

5268

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

6130

Females

975

F18-39

975

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8697

Females

1976

F18-39

1976

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

12320

Females

3903

F18-39

3903

23M→24M

23.0 - 24.0 mi

Top 38%
×6stories
+12ft-82ft

Overall

10895

Females

3237

F18-39

3237

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11832

Females

3819

F18-39

3819

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22060

Females

9170

F18-39

9170

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2stories
+22ft-21ft

Overall

12165

Females

4002

F18-39

4002

Passing Analysis

Category:
Athletes Passed
1246
Passed By
2494
Net Change
-1248
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6677
5K → 10K139303-164#6677#6841
10K → 15K157146+11#6841#6830
15K → 20K142112+30#6830#6800
20K → Half2425-1#6800#6801
Half → 25K22731+196#6801#6605
25K → 30K185179+6#6605#6599
30K → 20M17552-535#6599#7134
20M → 21M14924+125#7134#7009
21M → 35K4470-26#7009#7035
35K → 23M40240-200#7035#7235
23M → 24M38159-121#7235#7356
24M → 40K46153-107#7356#7463
40K → 25.2M4324-320#7463#7783
25.2M → Finish34176-142#7783#7925
TOTALS12462494-1248
📊

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