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BOSTON MARATHON 2025

Rebecca Jackson

Bib: 9779•F

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
22:26
Rank: #9646
Start → 5K
22:26 | 7:13/mi
10K· 6.21 mi
44:45
Rank: #9477 (+169)
5K → 10K
22:19 | 7:11/mi
15K· 9.32 mi
1:07:18
Rank: #9504 (-27)
10K → 15K
22:33 | 7:15/mi
20K· 12.43 mi
1:30:01
Rank: #9367 (+137)
15K → 20K
22:43 | 7:19/mi
Half· 13.11 mi
1:34:56
Rank: #9357 (+10)
20K → Half
4:55 | 7:12/mi
25K· 15.53 mi
1:53:11
Rank: #9452 (-95)
Half → 25K
18:15 | 7:32/mi
30K· 18.64 mi
2:16:10
Rank: #8879 (+573)
25K → 30K
22:59 | 7:24/mi
20M
2:26:22
Rank: #8685 (+194)
30K → 20M
10:12 | 7:30/mi
21M
2:34:22
Rank: #8561 (+124)
20M → 21M
8:00 | 8:00/mi
35K· 21.75 mi
2:39:46
Rank: #8440 (+121)
21M → 35K
5:24 | 7:13/mi
23M
2:49:07
Rank: #8251 (+189)
35K → 23M
9:21 | 7:28/mi
24M
2:56:19
Rank: #8081 (+170)
23M → 24M
7:12 | 7:12/mi
40K· 24.85 mi
3:02:41
Rank: #7974 (+107)
24M → 40K
6:22 | 7:27/mi
25.2M
3:05:31
Rank: #7947 (+27)
40K → 25.2M
2:50 | 8:13/mi
Finish· 26.22 mi
3:12:55
Rank: #7869 (+78)
25.2M → Finish
7:24 | 7:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:56
Pace7:14 /mi
2nd Half
Distance13.11 mi
Time1:37:59
Pace7:28 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:2522:267:1322:26
7:13
-
10K
6.21 mi11:10:4444:457:1222:19
7:11
-0:02
15K
9.32 mi11:33:171:07:187:1322:33
7:15
+0:04
20K
12.43 mi11:56:001:30:017:1522:43
7:19
+0:04
Half
13.11 mi12:00:551:34:567:144:55
7:12
-0:07
25K
15.53 mi12:19:101:53:117:1718:15
7:32
+0:20
30K
18.64 mi12:42:092:16:107:1822:59
7:24
-0:08
20M
20.00 mi12:52:212:26:227:1910:12
7:30
+0:06
21M
21.00 mi13:00:212:34:227:218:00
8:00
+0:30
35K
21.75 mi13:05:452:39:467:215:24
7:13
-0:47
23M
23.00 mi13:15:062:49:077:219:21
7:28
+0:15
24M
24.00 mi13:22:182:56:197:217:12
7:12
-0:16
40K
24.85 mi13:28:403:02:417:216:22
7:27
+0:15
25.2M
25.20 mi13:31:303:05:317:222:50
8:13
+0:46
Finish
26.22 mi13:38:543:12:557:227:24
7:16
-0:57

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

7:11 /mi

Average Pace

7:22 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:02:05

94% of race

Time at Steady Pace

10:50

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:21 /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 mi10:48:2522:267:1322:26
7:13
#9646
10K
6.21 mi11:10:4444:457:1222:19
7:11
#9477
15K
9.32 mi11:33:171:07:187:1322:33
7:15
#9504
20K
12.43 mi11:56:001:30:017:1522:43
7:19
#9367
Half
13.11 mi12:00:551:34:567:144:55
7:12
#9357
25K
15.53 mi12:19:101:53:117:1718:15
7:32
#9452
30K
18.64 mi12:42:092:16:107:1822:59
7:24
#8879
20M
20.00 mi12:52:212:26:227:1910:12
7:30
#8685
21M
21.00 mi13:00:212:34:227:218:00
8:00
#8561
35K
21.75 mi13:05:452:39:467:215:24
7:13
#8440
23M
23.00 mi13:15:062:49:077:219:21
7:28
#8251
24M
24.00 mi13:22:182:56:197:217:12
7:12
#8081
40K
24.85 mi13:28:403:02:417:216:22
7:27
#7974
25.2M
25.20 mi13:31:303:05:317:222:50
8:13
#7947
Finish
26.22 mi13:38:543:12:557:227:24
7:16
#7869
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9646164516459636(Top 34%)1717(Top 14%)1717(Top 31%)
10K6.21 mi3.10 mi9477+1691566+791566+799355(Top 33%)1535(Top 13%)1535(Top 28%)
15K9.32 mi3.11 mi9504-271600-341600-349636(Top 34%)1717(Top 14%)1717(Top 31%)
20K12.43 mi3.11 mi9367+1371580+201580+209141(Top 32%)1583(Top 13%)1583(Top 29%)
Half13.11 mi0.68 mi9357+10158015809179(Top 32%)1564(Top 13%)1564(Top 29%)
25K15.53 mi2.42 mi9452-951654-741654-7410192(Top 36%)2178(Top 18%)2178(Top 40%)
30K18.64 mi3.11 mi8879+5731457+1971457+1977046(Top 25%)1029(Top 8%)1029(Top 19%)
20M20.00 mi1.36 mi8685+1941413+441413+447076(Top 25%)1176(Top 10%)1176(Top 22%)
21M21.00 mi1.00 mi8561+1241390+231390+237363(Top 26%)1458(Top 12%)1458(Top 27%)
35K21.75 mi0.75 mi8440+1211369+211369+216778(Top 24%)1199(Top 10%)1199(Top 22%)
23M23.00 mi1.25 mi8251+1891330+391330+396475(Top 23%)1183(Top 10%)1183(Top 22%)
24M24.00 mi1.00 mi8081+1701313+171313+175865(Top 21%)1022(Top 8%)1022(Top 19%)
40K24.85 mi0.85 mi7974+1071302+111302+116511(Top 23%)1339(Top 11%)1339(Top 24%)
25.2M25.20 mi0.35 mi7947+27130213027203(Top 25%)1719(Top 14%)1719(Top 31%)
Finish26.22 mi1.02 mi7869+781303-11303-17523(Top 26%)1859(Top 15%)1859(Top 34%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21stories
+97ft-345ft

Overall

9636

Females

1717

F18-39

1717

5K→10K

3.1 - 6.2 mi

Top 33%
×5stories
+79ft-138ft

Overall

9355

Females

1535

F18-39

1535

10K→15K

6.2 - 9.3 mi

Top 34%
×3stories
+67ft-78ft

Overall

9636

Females

1717

F18-39

1717

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

9141

Females

1583

F18-39

1583

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

9179

Females

1564

F18-39

1564

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

10192

Females

2178

F18-39

2178

25K→30K

15.5 - 18.6 mi

Top 25%
×9stories
+181ft-148ft

Overall

7046

Females

1029

F18-39

1029

30K→20M

18.6 - 20.0 mi

Top 25%
×5stories
+64ft-50ft

Overall

7076

Females

1176

F18-39

1176

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

7363

Females

1458

F18-39

1458

21M→35K

21.0 - 21.8 mi

Top 24%
×7stories
+17ft-86ft

Overall

6778

Females

1199

F18-39

1199

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

6475

Females

1183

F18-39

1183

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5865

Females

1022

F18-39

1022

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6511

Females

1339

F18-39

1339

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

7203

Females

1719

F18-39

1719

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2stories
+22ft-21ft

Overall

7523

Females

1859

F18-39

1859

Passing Analysis

Category:
Athletes Passed
2629
Passed By
852
Net Change
+1777
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9646
5K → 10K322153+169#9646#9477
10K → 15K154181-27#9477#9504
15K → 20K245108+137#9504#9367
20K → Half2919+10#9367#9357
Half → 25K125220-95#9357#9452
25K → 30K58411+573#9452#8879
30K → 20M21016+194#8879#8685
20M → 21M15733+124#8685#8561
21M → 35K13514+121#8561#8440
35K → 23M20617+189#8440#8251
23M → 24M1788+170#8251#8081
24M → 40K12316+107#8081#7974
40K → 25.2M4215+27#7974#7947
25.2M → Finish11941+78#7947#7869
TOTALS2629852+1777
📊

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