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BOSTON MARATHON 2025

Julia Jamison

Bib: 16306•F

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 45%
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
24:38
Rank: #16012
Start → 5K
24:38 | 7:56/mi
10K· 6.21 mi
49:25
Rank: #16130 (-118)
5K → 10K
24:47 | 7:59/mi
15K· 9.32 mi
1:14:09
Rank: #15982 (+148)
10K → 15K
24:44 | 7:58/mi
20K· 12.43 mi
1:38:41
Rank: #15465 (+517)
15K → 20K
24:32 | 7:54/mi
Half· 13.11 mi
1:43:57
Rank: #15352 (+113)
20K → Half
5:16 | 7:43/mi
25K· 15.53 mi
2:02:54
Rank: #14824 (+528)
Half → 25K
18:57 | 7:49/mi
30K· 18.64 mi
2:28:13
Rank: #14298 (+526)
25K → 30K
25:19 | 8:09/mi
20M
2:39:53
Rank: #14269 (+29)
30K → 20M
11:40 | 8:35/mi
21M
2:49:46
Rank: #14550 (-281)
20M → 21M
9:53 | 9:53/mi
35K· 21.75 mi
2:57:57
Rank: #15177 (-627)
21M → 35K
8:11 | 10:56/mi
23M
3:11:48
Rank: #15947 (-770)
35K → 23M
13:51 | 11:04/mi
24M
3:21:09
Rank: #16092 (-145)
23M → 24M
9:21 | 9:21/mi
40K· 24.85 mi
3:29:02
Rank: #16136 (-44)
24M → 40K
7:53 | 9:13/mi
25.2M
3:32:27
Rank: #16148 (-12)
40K → 25.2M
3:25 | 9:54/mi
Finish· 26.22 mi
3:41:10
Rank: #16161 (-13)
25.2M → Finish
8:43 | 8:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:57
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:57:13
Pace8:56 /mi
📊Positive Split: 12.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:58:4324:387:5624:38
7:56
-
10K
6.21 mi11:23:3049:257:5724:47
7:59
+0:03
15K
9.32 mi11:48:141:14:097:5724:44
7:58
-0:01
20K
12.43 mi12:12:461:38:417:5624:32
7:54
-0:04
Half
13.11 mi12:18:021:43:577:565:16
7:43
-0:11
25K
15.53 mi12:36:592:02:547:5518:57
7:49
+0:06
30K
18.64 mi13:02:182:28:137:5725:19
8:09
+0:20
20M
20.00 mi13:13:582:39:538:0011:40
8:35
+0:26
21M
21.00 mi13:23:512:49:468:059:53
9:53
+1:18
35K
21.75 mi13:32:022:57:578:118:11
10:56
+1:03
23M
23.00 mi13:45:533:11:488:2013:51
11:04
+0:08
24M
24.00 mi13:55:143:21:098:239:21
9:21
-1:43
40K
24.85 mi14:03:073:29:028:257:53
9:13
-0:08
25.2M
25.20 mi14:06:323:32:278:263:25
9:54
+0:41
Finish
26.22 mi14:15:153:41:108:268:43
8:33
-1:21

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

7:43 /mi

Average Pace

8:26 /mi

Slowest Pace

11:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:54

56% of race

Time at Steady Pace

45:42

21% of race

Time at Slower Pace

52:34

24% of race

Average Pace: 8:26 /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 mi10:58:4324:387:5624:38
7:56
#16012
10K
6.21 mi11:23:3049:257:5724:47
7:59
#16130
15K
9.32 mi11:48:141:14:097:5724:44
7:58
#15982
20K
12.43 mi12:12:461:38:417:5624:32
7:54
#15465
Half
13.11 mi12:18:021:43:577:565:16
7:43
#15352
25K
15.53 mi12:36:592:02:547:5518:57
7:49
#14824
30K
18.64 mi13:02:182:28:137:5725:19
8:09
#14298
20M
20.00 mi13:13:582:39:538:0011:40
8:35
#14269
21M
21.00 mi13:23:512:49:468:059:53
9:53
#14550
35K
21.75 mi13:32:022:57:578:118:11
10:56
#15177
23M
23.00 mi13:45:533:11:488:2013:51
11:04
#15947
24M
24.00 mi13:55:143:21:098:239:21
9:21
#16092
40K
24.85 mi14:03:073:29:028:257:53
9:13
#16136
25.2M
25.20 mi14:06:323:32:278:263:25
9:54
#16148
Finish
26.22 mi14:15:153:41:108:268:43
8:33
#16161
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi160125160516015766(Top 56%)5015(Top 41%)5015(Top 92%)
10K6.21 mi3.10 mi16130-1185222-625222-6216306(Top 57%)5313(Top 43%)5313(Top 97%)
15K9.32 mi3.11 mi15982+1485135+875135+8715766(Top 56%)5015(Top 41%)5015(Top 92%)
20K12.43 mi3.11 mi15465+5174840+2954840+29514080(Top 50%)4140(Top 34%)4140(Top 76%)
Half13.11 mi0.68 mi15352+1134781+594781+5913682(Top 48%)3904(Top 32%)3904(Top 71%)
25K15.53 mi2.42 mi14824+5284520+2614520+26112515(Top 44%)3410(Top 28%)3410(Top 62%)
30K18.64 mi3.11 mi14298+5264280+2404280+24012458(Top 44%)3543(Top 29%)3543(Top 65%)
20M20.00 mi1.36 mi14269+294287-74287-714371(Top 51%)4711(Top 39%)4711(Top 86%)
21M21.00 mi1.00 mi14550-2814473-1864473-18617850(Top 63%)6710(Top 55%)6710(Top 123%)
35K21.75 mi0.75 mi15177-6274839-3664839-36624081(Top 85%)10103(Top 83%)10103(Top 185%)
23M23.00 mi1.25 mi15947-7705342-5035342-50323383(Top 82%)9795(Top 80%)9795(Top 179%)
24M24.00 mi1.00 mi16092-1455431-895431-8919038(Top 67%)7558(Top 62%)7558(Top 138%)
40K24.85 mi0.85 mi16136-445480-495480-4917456(Top 61%)6832(Top 56%)6832(Top 125%)
25.2M25.20 mi0.35 mi16148-125497-175497-1716623(Top 59%)6391(Top 52%)6391(Top 117%)
Finish26.22 mi1.02 mi16161-135523-265523-2616593(Top 58%)6351(Top 52%)6351(Top 116%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21stories
+97ft-345ft

Overall

15766

Females

5015

F18-39

5015

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

16306

Females

5313

F18-39

5313

10K→15K

6.2 - 9.3 mi

Top 56%
×3stories
+67ft-78ft

Overall

15766

Females

5015

F18-39

5015

15K→20K

9.3 - 12.4 mi

Top 50%
×5stories
+106ft-86ft

Overall

14080

Females

4140

F18-39

4140

20K→Half

12.4 - 13.1 mi

Top 48%
×2stories
+19ft-37ft

Overall

13682

Females

3904

F18-39

3904

Half→25K

13.1 - 15.5 mi

Top 44%
×4stories
+66ft-88ft

Overall

12515

Females

3410

F18-39

3410

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

12458

Females

3543

F18-39

3543

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

14371

Females

4711

F18-39

4711

20M→21M

20.0 - 21.0 mi

Top 63%
×8stories
+106ft-24ft

Overall

17850

Females

6710

F18-39

6710

21M→35K

21.0 - 21.8 mi

Top 85%
×7stories
+17ft-86ft

Overall

24081

Females

10103

F18-39

10103

35K→23M

21.8 - 23.0 mi

Top 82%
×5stories
+23ft-63ft

Overall

23383

Females

9795

F18-39

9795

23M→24M

23.0 - 24.0 mi

Top 67%
×6stories
+12ft-82ft

Overall

19038

Females

7558

F18-39

7558

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

17456

Females

6832

F18-39

6832

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

16623

Females

6391

F18-39

6391

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

16593

Females

6351

F18-39

6351

Passing Analysis

Category:
Athletes Passed
2686
Passed By
2835
Net Change
-149
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16012
5K → 10K267385-118#16012#16130
10K → 15K287139+148#16130#15982
15K → 20K53720+517#15982#15465
20K → Half1152+113#15465#15352
Half → 25K5357+528#15352#14824
25K → 30K56539+526#14824#14298
30K → 20M129100+29#14298#14269
20M → 21M49330-281#14269#14550
21M → 35K8635-627#14550#15177
35K → 23M21791-770#15177#15947
23M → 24M30175-145#15947#16092
24M → 40K4993-44#16092#16136
40K → 25.2M2436-12#16136#16148
25.2M → Finish7083-13#16148#16161
TOTALS26862835-149
📊

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