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BOSTON MARATHON 2025

Jackie Dezellar

Bib: 24145•F

MN

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 (F60-64)
#0 / 624
Top 13%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:35
Rank: #20232
Start → 5K
26:35 | 8:33/mi
10K· 6.21 mi
53:15
Rank: #20241 (-9)
5K → 10K
26:40 | 8:35/mi
15K· 9.32 mi
1:20:16
Rank: #20271 (-30)
10K → 15K
27:01 | 8:42/mi
20K· 12.43 mi
1:47:21
Rank: #20077 (+194)
15K → 20K
27:05 | 8:43/mi
Half· 13.11 mi
1:53:13
Rank: #20044 (+33)
20K → Half
5:52 | 8:36/mi
25K· 15.53 mi
2:14:18
Rank: #19755 (+289)
Half → 25K
21:05 | 8:42/mi
30K· 18.64 mi
2:42:14
Rank: #19340 (+415)
25K → 30K
27:56 | 8:59/mi
20M
2:54:36
Rank: #19167 (+173)
30K → 20M
12:22 | 9:06/mi
21M
3:04:20
Rank: #19054 (+113)
20M → 21M
9:44 | 9:44/mi
35K· 21.75 mi
3:10:52
Rank: #18978 (+76)
21M → 35K
6:32 | 8:44/mi
23M
3:21:56
Rank: #18762 (+216)
35K → 23M
11:04 | 8:50/mi
24M
3:30:44
Rank: #18640 (+122)
23M → 24M
8:48 | 8:48/mi
40K· 24.85 mi
3:38:26
Rank: #18531 (+109)
24M → 40K
7:42 | 9:00/mi
25.2M
3:41:50
Rank: #18500 (+31)
40K → 25.2M
3:24 | 9:52/mi
Finish· 26.22 mi
3:50:44
Rank: #18483 (+17)
25.2M → Finish
8:54 | 8:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:13
Pace8:38 /mi
2nd Half
Distance13.11 mi
Time1:57:31
Pace8:58 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:2126:358:3326:35
8:33
-
10K
6.21 mi11:51:0153:158:3426:40
8:35
+0:02
15K
9.32 mi12:18:021:20:168:3727:01
8:42
+0:07
20K
12.43 mi12:45:071:47:218:3827:05
8:43
+0:01
Half
13.11 mi12:50:591:53:138:385:52
8:36
-0:07
25K
15.53 mi13:12:042:14:188:3921:05
8:42
+0:06
30K
18.64 mi13:40:002:42:148:4227:56
8:59
+0:17
20M
20.00 mi13:52:222:54:368:4412:22
9:06
+0:07
21M
21.00 mi14:02:063:04:208:479:44
9:44
+0:38
35K
21.75 mi14:08:383:10:528:476:32
8:44
-1:00
23M
23.00 mi14:19:423:21:568:4711:04
8:50
+0:06
24M
24.00 mi14:28:303:30:448:478:48
8:48
-0:02
40K
24.85 mi14:36:123:38:268:477:42
9:00
+0:12
25.2M
25.20 mi14:39:363:41:508:483:24
9:52
+0:52
Finish
26.22 mi14:48:303:50:448:488:54
8:44
-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

8:33 /mi

Average Pace

8:48 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:37:36

94% of race

Time at Steady Pace

13:08

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:48 /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 mi11:24:2126:358:3326:35
8:33
#20232
10K
6.21 mi11:51:0153:158:3426:40
8:35
#20241
15K
9.32 mi12:18:021:20:168:3727:01
8:42
#20271
20K
12.43 mi12:45:071:47:218:3827:05
8:43
#20077
Half
13.11 mi12:50:591:53:138:385:52
8:36
#20044
25K
15.53 mi13:12:042:14:188:3921:05
8:42
#19755
30K
18.64 mi13:40:002:42:148:4227:56
8:59
#19340
20M
20.00 mi13:52:222:54:368:4412:22
9:06
#19167
21M
21.00 mi14:02:063:04:208:479:44
9:44
#19054
35K
21.75 mi14:08:383:10:528:476:32
8:44
#18978
23M
23.00 mi14:19:423:21:568:4711:04
8:50
#18762
24M
24.00 mi14:28:303:30:448:478:48
8:48
#18640
40K
24.85 mi14:36:123:38:268:477:42
9:00
#18531
25.2M
25.20 mi14:39:363:41:508:483:24
9:52
#18500
Finish
26.22 mi14:48:303:50:448:488:54
8:44
#18483
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi202327636763620468(Top 72%)7689(Top 63%)7689(Top 1232%)
10K6.21 mi3.10 mi20241-97617+197617+1920270(Top 71%)7616(Top 62%)7616(Top 1221%)
15K9.32 mi3.11 mi20271-307623-67623-620468(Top 72%)7689(Top 63%)7689(Top 1232%)
20K12.43 mi3.11 mi20077+1947512+1117512+11119507(Top 69%)7205(Top 59%)7205(Top 1155%)
Half13.11 mi0.68 mi20044+337499+137499+1319829(Top 70%)7367(Top 60%)7367(Top 1181%)
25K15.53 mi2.42 mi19755+2897341+1587341+15818374(Top 65%)6639(Top 54%)6639(Top 1064%)
30K18.64 mi3.11 mi19340+4157154+1877154+18717659(Top 62%)6395(Top 52%)6395(Top 1025%)
20M20.00 mi1.36 mi19167+1737074+807074+8017336(Top 61%)6333(Top 52%)6333(Top 1015%)
21M21.00 mi1.00 mi19054+1137034+407034+4017205(Top 61%)6377(Top 52%)6377(Top 1022%)
35K21.75 mi0.75 mi18978+767009+257009+2516939(Top 60%)6309(Top 52%)6309(Top 1011%)
23M23.00 mi1.25 mi18762+2166918+916918+9115359(Top 54%)5533(Top 45%)5533(Top 887%)
24M24.00 mi1.00 mi18640+1226868+506868+5016355(Top 58%)6135(Top 50%)6135(Top 983%)
40K24.85 mi0.85 mi18531+1096840+286840+2816377(Top 58%)6254(Top 51%)6254(Top 1002%)
25.2M25.20 mi0.35 mi18500+316831+96831+916455(Top 58%)6316(Top 52%)6316(Top 1012%)
Finish26.22 mi1.02 mi18483+176845-146845-1417698(Top 62%)6923(Top 57%)6923(Top 1109%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

20468

Females

7689

F60-64

7689

5K→10K

3.1 - 6.2 mi

Top 71%
×5stories
+79ft-138ft

Overall

20270

Females

7616

F60-64

7616

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

20468

Females

7689

F60-64

7689

15K→20K

9.3 - 12.4 mi

Top 69%
×5stories
+106ft-86ft

Overall

19507

Females

7205

F60-64

7205

20K→Half

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

19829

Females

7367

F60-64

7367

Half→25K

13.1 - 15.5 mi

Top 65%
×4stories
+66ft-88ft

Overall

18374

Females

6639

F60-64

6639

25K→30K

15.5 - 18.6 mi

Top 62%
×9stories
+181ft-148ft

Overall

17659

Females

6395

F60-64

6395

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

17336

Females

6333

F60-64

6333

20M→21M

20.0 - 21.0 mi

Top 61%
×8stories
+106ft-24ft

Overall

17205

Females

6377

F60-64

6377

21M→35K

21.0 - 21.8 mi

Top 60%
×7stories
+17ft-86ft

Overall

16939

Females

6309

F60-64

6309

35K→23M

21.8 - 23.0 mi

Top 54%
×5stories
+23ft-63ft

Overall

15359

Females

5533

F60-64

5533

23M→24M

23.0 - 24.0 mi

Top 58%
×6stories
+12ft-82ft

Overall

16355

Females

6135

F60-64

6135

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16377

Females

6254

F60-64

6254

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

16455

Females

6316

F60-64

6316

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2stories
+22ft-21ft

Overall

17698

Females

6923

F60-64

6923

Passing Analysis

Category:
Athletes Passed
2620
Passed By
871
Net Change
+1749
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20232
5K → 10K271280-9#20232#20241
10K → 15K179209-30#20241#20271
15K → 20K28086+194#20271#20077
20K → Half4613+33#20077#20044
Half → 25K31728+289#20044#19755
25K → 30K46247+415#19755#19340
30K → 20M19522+173#19340#19167
20M → 21M15744+113#19167#19054
21M → 35K9721+76#19054#18978
35K → 23M23014+216#18978#18762
23M → 24M1297+122#18762#18640
24M → 40K13627+109#18640#18531
40K → 25.2M4716+31#18531#18500
25.2M → Finish7457+17#18500#18483
TOTALS2620871+1749
📊

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