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BOSTON MARATHON 2025

Heather Ellis

Bib: 27768•F

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:38
Rank: #24368
Start → 5K
29:38 | 9:32/mi
10K· 6.21 mi
59:11
Rank: #24255 (+113)
5K → 10K
29:33 | 9:31/mi
15K· 9.32 mi
1:29:31
Rank: #24323 (-68)
10K → 15K
30:20 | 9:46/mi
20K· 12.43 mi
2:02:43
Rank: #24703 (-380)
15K → 20K
33:12 | 10:41/mi
Half· 13.11 mi
2:09:28
Rank: #24689 (+14)
20K → Half
6:45 | 9:54/mi
25K· 15.53 mi
2:35:11
Rank: #24693 (-4)
Half → 25K
25:43 | 10:36/mi
30K· 18.64 mi
3:08:21
Rank: #24459 (+234)
25K → 30K
33:10 | 10:41/mi
20M
3:22:33
Rank: #24314 (+145)
30K → 20M
14:12 | 10:27/mi
21M
3:33:04
Rank: #24108 (+206)
20M → 21M
10:31 | 10:31/mi
35K· 21.75 mi
3:42:39
Rank: #24253 (-145)
21M → 35K
9:35 | 12:49/mi
23M
3:55:24
Rank: #24085 (+168)
35K → 23M
12:45 | 10:11/mi
24M
4:05:27
Rank: #23984 (+101)
23M → 24M
10:03 | 10:03/mi
40K· 24.85 mi
4:14:21
Rank: #23904 (+80)
24M → 40K
8:54 | 10:25/mi
25.2M
4:18:02
Rank: #23850 (+54)
40K → 25.2M
3:41 | 10:41/mi
Finish· 26.22 mi
4:27:46
Rank: #23789 (+61)
25.2M → Finish
9:44 | 9:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:28
Pace9:53 /mi
2nd Half
Distance13.11 mi
Time2:18:18
Pace10:33 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:5129:389:3229:38
9:32
-
10K
6.21 mi12:21:2459:119:3129:33
9:31
-0:01
15K
9.32 mi12:51:441:29:319:3630:20
9:46
+0:15
20K
12.43 mi13:24:562:02:439:5233:12
10:41
+0:55
Half
13.11 mi13:31:412:09:289:536:45
9:54
-0:47
25K
15.53 mi13:57:242:35:119:5925:43
10:36
+0:42
30K
18.64 mi14:30:343:08:2110:0633:10
10:41
+0:05
20M
20.00 mi14:44:463:22:3310:0814:12
10:27
-0:14
21M
21.00 mi14:55:173:33:0410:0910:31
10:31
+0:04
35K
21.75 mi15:04:523:42:3910:149:35
12:49
+2:18
23M
23.00 mi15:17:373:55:2410:1412:45
10:11
-2:38
24M
24.00 mi15:27:404:05:2710:1410:03
10:03
-0:08
40K
24.85 mi15:36:344:14:2110:148:54
10:25
+0:22
25.2M
25.20 mi15:40:154:18:0210:143:41
10:41
+0:16
Finish
26.22 mi15:49:594:27:4610:139:44
9:33
-1:08

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

9:31 /mi

Average Pace

10:13 /mi

Slowest Pace

12:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:00

40% of race

Time at Steady Pace

2:32:11

57% of race

Time at Slower Pace

9:35

4% of race

Average Pace: 10:13 /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 mi11:51:5129:389:3229:38
9:32
#24368
10K
6.21 mi12:21:2459:119:3129:33
9:31
#24255
15K
9.32 mi12:51:441:29:319:3630:20
9:46
#24323
20K
12.43 mi13:24:562:02:439:5233:12
10:41
#24703
Half
13.11 mi13:31:412:09:289:536:45
9:54
#24689
25K
15.53 mi13:57:242:35:119:5925:43
10:36
#24693
30K
18.64 mi14:30:343:08:2110:0633:10
10:41
#24459
20M
20.00 mi14:44:463:22:3310:0814:12
10:27
#24314
21M
21.00 mi14:55:173:33:0410:0910:31
10:31
#24108
35K
21.75 mi15:04:523:42:3910:149:35
12:49
#24253
23M
23.00 mi15:17:373:55:2410:1412:45
10:11
#24085
24M
24.00 mi15:27:404:05:2710:1410:03
10:03
#23984
40K
24.85 mi15:36:344:14:2110:148:54
10:25
#23904
25.2M
25.20 mi15:40:154:18:0210:143:41
10:41
#23850
Finish
26.22 mi15:49:594:27:4610:139:44
9:33
#23789
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi243689885988524466(Top 86%)9934(Top 81%)9934(Top 182%)
10K6.21 mi3.10 mi24255+1139821+649821+6424147(Top 85%)9771(Top 80%)9771(Top 179%)
15K9.32 mi3.11 mi24323-689856-359856-3524466(Top 86%)9934(Top 81%)9934(Top 182%)
20K12.43 mi3.11 mi24703-38010073-21710073-21725514(Top 90%)10541(Top 86%)10541(Top 193%)
Half13.11 mi0.68 mi24689+1410065+810065+824615(Top 87%)10062(Top 82%)10062(Top 184%)
25K15.53 mi2.42 mi24693-410085-2010085-2024564(Top 86%)10052(Top 82%)10052(Top 184%)
30K18.64 mi3.11 mi24459+2349979+1069979+10623339(Top 82%)9518(Top 78%)9518(Top 174%)
20M20.00 mi1.36 mi24314+1459922+579922+5722298(Top 79%)9061(Top 74%)9061(Top 166%)
21M21.00 mi1.00 mi24108+2069825+979825+9720086(Top 71%)7964(Top 65%)7964(Top 146%)
35K21.75 mi0.75 mi24253-1459915-909915-9026800(Top 94%)11486(Top 94%)11486(Top 210%)
23M23.00 mi1.25 mi24085+1689839+769839+7621076(Top 74%)8602(Top 70%)8602(Top 157%)
24M24.00 mi1.00 mi23984+1019796+439796+4321515(Top 76%)8867(Top 73%)8867(Top 162%)
40K24.85 mi0.85 mi23904+809766+309766+3021694(Top 76%)9044(Top 74%)9044(Top 165%)
25.2M25.20 mi0.35 mi23850+549751+159751+1519732(Top 69%)8043(Top 66%)8043(Top 147%)
Finish26.22 mi1.02 mi23789+619728+239728+2321392(Top 75%)8863(Top 72%)8863(Top 162%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21stories
+97ft-345ft

Overall

24466

Females

9934

F18-39

9934

5K→10K

3.1 - 6.2 mi

Top 85%
×5stories
+79ft-138ft

Overall

24147

Females

9771

F18-39

9771

10K→15K

6.2 - 9.3 mi

Top 86%
×3stories
+67ft-78ft

Overall

24466

Females

9934

F18-39

9934

15K→20K

9.3 - 12.4 mi

Top 90%
×5stories
+106ft-86ft

Overall

25514

Females

10541

F18-39

10541

20K→Half

12.4 - 13.1 mi

Top 87%
×2stories
+19ft-37ft

Overall

24615

Females

10062

F18-39

10062

Half→25K

13.1 - 15.5 mi

Top 86%
×4stories
+66ft-88ft

Overall

24564

Females

10052

F18-39

10052

25K→30K

15.5 - 18.6 mi

Top 82%
×9stories
+181ft-148ft

Overall

23339

Females

9518

F18-39

9518

30K→20M

18.6 - 20.0 mi

Top 79%
×5stories
+64ft-50ft

Overall

22298

Females

9061

F18-39

9061

20M→21M

20.0 - 21.0 mi

Top 71%
×8stories
+106ft-24ft

Overall

20086

Females

7964

F18-39

7964

21M→35K

21.0 - 21.8 mi

Top 94%
×7stories
+17ft-86ft

Overall

26800

Females

11486

F18-39

11486

35K→23M

21.8 - 23.0 mi

Top 74%
×5stories
+23ft-63ft

Overall

21076

Females

8602

F18-39

8602

23M→24M

23.0 - 24.0 mi

Top 76%
×6stories
+12ft-82ft

Overall

21515

Females

8867

F18-39

8867

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21694

Females

9044

F18-39

9044

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

19732

Females

8043

F18-39

8043

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2stories
+22ft-21ft

Overall

21392

Females

8863

F18-39

8863

Passing Analysis

Category:
Athletes Passed
1707
Passed By
1128
Net Change
+579
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24368
5K → 10K280167+113#24368#24255
10K → 15K116184-68#24255#24323
15K → 20K49429-380#24323#24703
20K → Half3420+14#24703#24689
Half → 25K98102-4#24689#24693
25K → 30K26531+234#24693#24459
30K → 20M1538+145#24459#24314
20M → 21M2104+206#24314#24108
21M → 35K9154-145#24108#24253
35K → 23M1724+168#24253#24085
23M → 24M1043+101#24085#23984
24M → 40K888+80#23984#23904
40K → 25.2M562+54#23904#23850
25.2M → Finish7312+61#23850#23789
TOTALS17071128+579
📊

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