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BOSTON MARATHON 2025

Julia Rosenberg

Bib: 28243•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
29:06
Rank: #23805
Start → 5K
29:06 | 9:22/mi
10K· 6.21 mi
58:17
Rank: #23822 (-17)
5K → 10K
29:11 | 9:24/mi
15K· 9.32 mi
1:26:39
Rank: #23429 (+393)
10K → 15K
28:22 | 9:08/mi
20K· 12.43 mi
1:56:16
Rank: #23303 (+126)
15K → 20K
29:37 | 9:32/mi
Half· 13.11 mi
2:02:27
Rank: #23253 (+50)
20K → Half
6:11 | 9:04/mi
25K· 15.53 mi
2:25:13
Rank: #22945 (+308)
Half → 25K
22:46 | 9:23/mi
30K· 18.64 mi
2:58:07
Rank: #22973 (-28)
25K → 30K
32:54 | 10:35/mi
20M
3:11:24
Rank: #22780 (+193)
30K → 20M
13:17 | 9:46/mi
21M
3:21:18
Rank: #22512 (+268)
20M → 21M
9:54 | 9:54/mi
35K· 21.75 mi
3:28:09
Rank: #22404 (+108)
21M → 35K
6:51 | 9:09/mi
23M
3:39:26
Rank: #22099 (+305)
35K → 23M
11:17 | 9:01/mi
24M
3:48:32
Rank: #21929 (+170)
23M → 24M
9:06 | 9:06/mi
40K· 24.85 mi
3:56:11
Rank: #21755 (+174)
24M → 40K
7:39 | 8:57/mi
25.2M
3:59:32
Rank: #21673 (+82)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
4:08:13
Rank: #21502 (+171)
25.2M → Finish
8:41 | 8:31/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:27
Pace9:20 /mi
2nd Half
Distance13.11 mi
Time2:05:46
Pace9:36 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:1129:069:2229:06
9:22
-
10K
6.21 mi12:24:2258:179:2329:11
9:24
+0:02
15K
9.32 mi12:52:441:26:399:1828:22
9:08
-0:16
20K
12.43 mi13:22:211:56:169:2129:37
9:32
+0:24
Half
13.11 mi13:28:322:02:279:206:11
9:04
-0:28
25K
15.53 mi13:51:182:25:139:2122:46
9:23
+0:19
30K
18.64 mi14:24:122:58:079:3332:54
10:35
+1:12
20M
20.00 mi14:37:293:11:249:3413:17
9:46
-0:49
21M
21.00 mi14:47:233:21:189:359:54
9:54
+0:08
35K
21.75 mi14:54:143:28:099:346:51
9:09
-0:45
23M
23.00 mi15:05:313:39:269:3211:17
9:01
-0:08
24M
24.00 mi15:14:373:48:329:319:06
9:06
+0:05
40K
24.85 mi15:22:163:56:119:307:39
8:57
-0:09
25.2M
25.20 mi15:25:373:59:329:303:21
9:43
+0:46
Finish
26.22 mi15:34:184:08:139:288:41
8:31
-1:12

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

8:31 /mi

Average Pace

9:28 /mi

Slowest Pace

10:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

42:54

17% of race

Time at Steady Pace

2:25:53

59% of race

Time at Slower Pace

59:26

24% of race

Average Pace: 9:28 /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 mi11:55:1129:069:2229:06
9:22
#23805
10K
6.21 mi12:24:2258:179:2329:11
9:24
#23822
15K
9.32 mi12:52:441:26:399:1828:22
9:08
#23429
20K
12.43 mi13:22:211:56:169:2129:37
9:32
#23303
Half
13.11 mi13:28:322:02:279:206:11
9:04
#23253
25K
15.53 mi13:51:182:25:139:2122:46
9:23
#22945
30K
18.64 mi14:24:122:58:079:3332:54
10:35
#22973
20M
20.00 mi14:37:293:11:249:3413:17
9:46
#22780
21M
21.00 mi14:47:233:21:189:359:54
9:54
#22512
35K
21.75 mi14:54:143:28:099:346:51
9:09
#22404
23M
23.00 mi15:05:313:39:269:3211:17
9:01
#22099
24M
24.00 mi15:14:373:48:329:319:06
9:06
#21929
40K
24.85 mi15:22:163:56:119:307:39
8:57
#21755
25.2M
25.20 mi15:25:373:59:329:303:21
9:43
#21673
Finish
26.22 mi15:34:184:08:139:288:41
8:31
#21502
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi238059588958822594(Top 80%)8886(Top 73%)8886(Top 162%)
10K6.21 mi3.10 mi23822-179585+39585+323812(Top 84%)9574(Top 78%)9574(Top 175%)
15K9.32 mi3.11 mi23429+3939369+2169369+21622594(Top 80%)8886(Top 73%)8886(Top 162%)
20K12.43 mi3.11 mi23303+1269287+829287+8223004(Top 81%)9148(Top 75%)9148(Top 167%)
Half13.11 mi0.68 mi23253+509263+249263+2422108(Top 78%)8665(Top 71%)8665(Top 158%)
25K15.53 mi2.42 mi22945+3089113+1509113+15021519(Top 76%)8372(Top 68%)8372(Top 153%)
30K18.64 mi3.11 mi22973-289171-589171-5823146(Top 81%)9408(Top 77%)9408(Top 172%)
20M20.00 mi1.36 mi22780+1939091+809091+8020232(Top 71%)7934(Top 65%)7934(Top 145%)
21M21.00 mi1.00 mi22512+2688952+1398952+13917937(Top 63%)6767(Top 55%)6767(Top 124%)
35K21.75 mi0.75 mi22404+1088904+488904+4819028(Top 67%)7479(Top 61%)7479(Top 137%)
23M23.00 mi1.25 mi22099+3058774+1308774+13016378(Top 58%)6115(Top 50%)6115(Top 112%)
24M24.00 mi1.00 mi21929+1708699+758699+7517931(Top 63%)7008(Top 57%)7008(Top 128%)
40K24.85 mi0.85 mi21755+1748628+718628+7116055(Top 57%)6082(Top 50%)6082(Top 111%)
25.2M25.20 mi0.35 mi21673+828592+368592+3615804(Top 56%)6015(Top 49%)6015(Top 110%)
Finish26.22 mi1.02 mi21502+1718498+948498+9416401(Top 58%)6261(Top 51%)6261(Top 114%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

22594

Females

8886

F18-39

8886

5K→10K

3.1 - 6.2 mi

Top 84%
×5stories
+79ft-138ft

Overall

23812

Females

9574

F18-39

9574

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

22594

Females

8886

F18-39

8886

15K→20K

9.3 - 12.4 mi

Top 81%
×5stories
+106ft-86ft

Overall

23004

Females

9148

F18-39

9148

20K→Half

12.4 - 13.1 mi

Top 78%
×2stories
+19ft-37ft

Overall

22108

Females

8665

F18-39

8665

Half→25K

13.1 - 15.5 mi

Top 76%
×4stories
+66ft-88ft

Overall

21519

Females

8372

F18-39

8372

25K→30K

15.5 - 18.6 mi

Top 81%
×9stories
+181ft-148ft

Overall

23146

Females

9408

F18-39

9408

30K→20M

18.6 - 20.0 mi

Top 71%
×5stories
+64ft-50ft

Overall

20232

Females

7934

F18-39

7934

20M→21M

20.0 - 21.0 mi

Top 63%
×8stories
+106ft-24ft

Overall

17937

Females

6767

F18-39

6767

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

19028

Females

7479

F18-39

7479

35K→23M

21.8 - 23.0 mi

Top 58%
×5stories
+23ft-63ft

Overall

16378

Females

6115

F18-39

6115

23M→24M

23.0 - 24.0 mi

Top 63%
×6stories
+12ft-82ft

Overall

17931

Females

7008

F18-39

7008

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

16055

Females

6082

F18-39

6082

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

15804

Females

6015

F18-39

6015

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

16401

Females

6261

F18-39

6261

Passing Analysis

Category:
Athletes Passed
2892
Passed By
589
Net Change
+2303
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23805
5K → 10K237254-17#23805#23822
10K → 15K42128+393#23822#23429
15K → 20K21084+126#23429#23303
20K → Half6313+50#23303#23253
Half → 25K32820+308#23253#22945
25K → 30K148176-28#22945#22973
30K → 20M2007+193#22973#22780
20M → 21M2691+268#22780#22512
21M → 35K1091+108#22512#22404
35K → 23M3050+305#22404#22099
23M → 24M1733+170#22099#21929
24M → 40K1740+174#21929#21755
40K → 25.2M831+82#21755#21673
25.2M → Finish1721+171#21673#21502
TOTALS2892589+2303
📊

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