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BOSTON MARATHON 2025

Jennifer Buchanan

Bib: 16460•F

BC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 29%
Gender (Female)
#0 / 12228
Top 12%
Division (F18-39)
#0 / 5469
Top 21%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:23/mi
22:57
↑ 97↓ 3451.5%
10K· 6.21 mi
7:21/mi
45:47
↑ 79↓ 1380.4%
15K· 9.32 mi
7:24/mi
1:08:45
↑ 67↓ 78
20K· 12.43 mi
7:20/mi
1:31:33
↑ 106↓ 860.1%
Half· 13.11 mi
7:14/mi
1:36:29
↑ 19↓ 370.5%
25K· 15.53 mi
7:21/mi
1:54:18
↑ 66↓ 880.2%
30K· 18.64 mi
7:33/mi
2:17:44
↑ 181↓ 1480.2%
20M
7:33/mi
2:27:59
↑ 64↓ 500.2%
21M
7:46/mi
2:35:45
↑ 106↓ 241.6%
35K· 21.75 mi
7:12/mi
2:41:08
↑ 17↓ 861.7%
23M
7:29/mi
2:50:30
↑ 23↓ 630.6%
24M
7:16/mi
2:57:46
↓ 821.3%
40K· 24.85 mi
7:20/mi
3:04:02
↓ 200.3%
25.2M
8:01/mi
3:06:48
↑ 13↓ 160.2%
Finish· 26.22 mi
6:52/mi
3:13:48
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:36:29
Pace7:22 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:37:19
Pace7:25 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:3122:577:2322:57
7:23
-
10K
6.21 mi11:20:2145:477:2222:50
7:21
-0:02
15K
9.32 mi11:43:191:08:457:2322:58
7:24
+0:03
20K
12.43 mi12:06:071:31:337:2222:48
7:20
-0:04
Half
13.11 mi12:11:031:36:297:224:56
7:14
-0:06
25K
15.53 mi12:28:521:54:187:2117:49
7:21
+0:07
30K
18.64 mi12:52:182:17:447:2323:26
7:33
+0:12
20M
20.00 mi13:02:332:27:597:2410:15
7:33
0:00
21M
21.00 mi13:10:192:35:457:257:46
7:46
+0:13
35K
21.75 mi13:15:422:41:087:255:23
7:12
-0:34
23M
23.00 mi13:25:042:50:307:259:22
7:29
+0:17
24M
24.00 mi13:32:202:57:467:247:16
7:16
-0:13
40K
24.85 mi13:38:363:04:027:246:16
7:20
+0:04
25.2M
25.20 mi13:41:223:06:487:252:46
8:01
+0:41
Finish
26.22 mi13:48:223:13:487:247:00
6:52
-1:09

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

6:52 /mi

Average Pace

7:24 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:03:16

95% of race

Time at Steady Pace

10:32

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:23 /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 mi10:57:3122:577:2322:57
7:23
#11202
10K
6.21 mi11:20:2145:477:2222:50
7:21
#10938
15K
9.32 mi11:43:191:08:457:2322:58
7:24
#10855
20K
12.43 mi12:06:071:31:337:2222:48
7:20
#10462
Half
13.11 mi12:11:031:36:297:224:56
7:14
#10391
25K
15.53 mi12:28:521:54:187:2117:49
7:21
#10081
30K
18.64 mi12:52:182:17:447:2323:26
7:33
#9614
20M
20.00 mi13:02:332:27:597:2410:15
7:33
#9371
21M
21.00 mi13:10:192:35:457:257:46
7:46
#9133
35K
21.75 mi13:15:422:41:087:255:23
7:12
#8996
23M
23.00 mi13:25:042:50:307:259:22
7:29
#8761
24M
24.00 mi13:32:202:57:467:247:16
7:16
#8585
40K
24.85 mi13:38:363:04:027:246:16
7:20
#8405
25.2M
25.20 mi13:41:223:06:487:252:46
8:01
#8339
Finish
26.22 mi13:48:223:13:487:247:00
6:52
#8154
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi112022369236910804(Top 38%)2267(Top 19%)2267(Top 41%)
10K6.21 mi3.10 mi10938+2642274+952274+9510746(Top 38%)2177(Top 18%)2177(Top 40%)
15K9.32 mi3.11 mi10855+832250+242250+2410804(Top 38%)2267(Top 19%)2267(Top 41%)
20K12.43 mi3.11 mi10462+3932079+1712079+1719363(Top 33%)1671(Top 14%)1671(Top 31%)
Half13.11 mi0.68 mi10391+712057+222057+229423(Top 33%)1666(Top 14%)1666(Top 30%)
25K15.53 mi2.42 mi10081+3101949+1081949+1088737(Top 31%)1521(Top 12%)1521(Top 28%)
30K18.64 mi3.11 mi9614+4671786+1631786+1638051(Top 28%)1408(Top 12%)1408(Top 26%)
20M20.00 mi1.36 mi9371+2431704+821704+827340(Top 26%)1286(Top 11%)1286(Top 24%)
21M21.00 mi1.00 mi9133+2381630+741630+746038(Top 21%)946(Top 8%)946(Top 17%)
35K21.75 mi0.75 mi8996+1371593+371593+376625(Top 23%)1149(Top 9%)1149(Top 21%)
23M23.00 mi1.25 mi8761+2351536+571536+576545(Top 23%)1210(Top 10%)1210(Top 22%)
24M24.00 mi1.00 mi8585+1761496+401496+406257(Top 22%)1172(Top 10%)1172(Top 21%)
40K24.85 mi0.85 mi8405+1801462+341462+345852(Top 21%)1084(Top 9%)1084(Top 20%)
25.2M25.20 mi0.35 mi8339+661455+71455+76148(Top 22%)1306(Top 11%)1306(Top 24%)
Finish26.22 mi1.02 mi8154+1851413+421413+424936(Top 17%)856(Top 7%)856(Top 16%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10804

Females

2267

F18-39

2267

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10746

Females

2177

F18-39

2177

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10804

Females

2267

F18-39

2267

15K→20K

9.3 - 12.4 mi

Top 33%
×5story building
+106ft-86ft

Overall

9363

Females

1671

F18-39

1671

20K→Half

12.4 - 13.1 mi

Top 33%
×2story building
+19ft-37ft

Overall

9423

Females

1666

F18-39

1666

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

8737

Females

1521

F18-39

1521

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

8051

Females

1408

F18-39

1408

30K→20M

18.6 - 20.0 mi

Top 26%
×5story building
+64ft-50ft

Overall

7340

Females

1286

F18-39

1286

20M→21M

20.0 - 21.0 mi

Top 21%
×8story building
+106ft-24ft

Overall

6038

Females

946

F18-39

946

21M→35K

21.0 - 21.8 mi

Top 23%
×7story building
+17ft-86ft

Overall

6625

Females

1149

F18-39

1149

35K→23M

21.8 - 23.0 mi

Top 23%
×5story building
+23ft-63ft

Overall

6545

Females

1210

F18-39

1210

23M→24M

23.0 - 24.0 mi

Top 22%
×6story building
+12ft-82ft

Overall

6257

Females

1172

F18-39

1172

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5852

Females

1084

F18-39

1084

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

6148

Females

1306

F18-39

1306

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2story building
+22ft-21ft

Overall

4936

Females

856

F18-39

856

Passing Analysis

Category:
Athletes Passed
3469*
Passed By
421
Net Change
+3048
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11202
5K → 10K408144+264#11202#10938
10K → 15K215132+83#10938#10855
15K → 20K41825+393#10855#10462
20K → Half765+71#10462#10391
Half → 25K33121+310#10391#10081
25K → 30K498*31+467#10081#9614
30K → 20M2496+243#9614#9371
20M → 21M2457+238#9371#9133
21M → 35K1436+137#9133#8996
35K → 23M24914+235#8996#8761
23M → 24M1837+176#8761#8585
24M → 40K1899+180#8585#8405
40K → 25.2M748+66#8405#8339
25.2M → Finish1916+185#8339#8154
TOTALS3469*421+3048

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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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