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BOSTON MARATHON 2025

Rachel Xu

Bib: 13444•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 24%
Gender (Female)
#0 / 12228
Top 8%
Division (F18-39)
#0 / 5469
Top 15%
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
6:58/mi
21:40
↑ 97↓ 3451.5%
10K· 6.21 mi
7:06/mi
43:42
↑ 79↓ 1380.4%
15K· 9.32 mi
7:06/mi
1:05:46
↑ 67↓ 78
20K· 12.43 mi
7:15/mi
1:28:16
↑ 106↓ 860.1%
Half· 13.11 mi
6:59/mi
1:33:02
↑ 19↓ 370.5%
25K· 15.53 mi
7:13/mi
1:50:33
↑ 66↓ 880.2%
30K· 18.64 mi
7:26/mi
2:13:40
↑ 181↓ 1480.2%
20M
7:26/mi
2:23:46
↑ 64↓ 500.2%
21M
7:54/mi
2:31:40
↑ 106↓ 241.6%
35K· 21.75 mi
7:08/mi
2:37:00
↑ 17↓ 861.7%
23M
7:22/mi
2:46:13
↑ 23↓ 630.6%
24M
7:08/mi
2:53:21
↓ 821.3%
40K· 24.85 mi
7:15/mi
2:59:33
↓ 200.3%
25.2M
8:01/mi
3:02:19
↑ 13↓ 160.2%
Finish· 26.22 mi
7:10/mi
3:09:37
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:02
Pace7:06 /mi
2nd Half
Distance13.11 mi
Time1:36:35
Pace7:22 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:5421:406:5821:40
6:58
-
10K
6.21 mi11:12:5643:427:0222:02
7:06
+0:08
15K
9.32 mi11:35:001:05:467:0322:04
7:06
0:00
20K
12.43 mi11:57:301:28:167:0622:30
7:15
+0:09
Half
13.11 mi12:02:161:33:027:064:46
6:59
-0:16
25K
15.53 mi12:19:471:50:337:0717:31
7:13
+0:14
30K
18.64 mi12:42:542:13:407:1023:07
7:26
+0:13
20M
20.00 mi12:53:002:23:467:1110:06
7:26
0:00
21M
21.00 mi13:00:542:31:407:137:54
7:54
+0:28
35K
21.75 mi13:06:142:37:007:135:20
7:08
-0:46
23M
23.00 mi13:15:272:46:137:149:13
7:22
+0:14
24M
24.00 mi13:22:352:53:217:137:08
7:08
-0:14
40K
24.85 mi13:28:472:59:337:136:12
7:15
+0:07
25.2M
25.20 mi13:31:333:02:197:142:46
8:01
+0:46
Finish
26.22 mi13:38:513:09:377:147:18
7:10
-0:51

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

6:58 /mi

Average Pace

7:14 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:58:57

94% of race

Time at Steady Pace

10:40

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:14 /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 mi10:50:5421:406:5821:40
6:58
#7630
10K
6.21 mi11:12:5643:427:0222:02
7:06
#8118
15K
9.32 mi11:35:001:05:467:0322:04
7:06
#8174
20K
12.43 mi11:57:301:28:167:0622:30
7:15
#8201
Half
13.11 mi12:02:161:33:027:064:46
6:59
#8147
25K
15.53 mi12:19:471:50:337:0717:31
7:13
#8050
30K
18.64 mi12:42:542:13:407:1023:07
7:26
#7833
20M
20.00 mi12:53:002:23:467:1110:06
7:26
#7673
21M
21.00 mi13:00:542:31:407:137:54
7:54
#7528
35K
21.75 mi13:06:142:37:007:135:20
7:08
#7446
23M
23.00 mi13:15:272:46:137:149:13
7:22
#7296
24M
24.00 mi13:22:352:53:217:137:08
7:08
#7157
40K
24.85 mi13:28:472:59:337:136:12
7:15
#7046
25.2M
25.20 mi13:31:333:02:197:142:46
8:01
#7006
Finish
26.22 mi13:38:513:09:377:147:18
7:10
#6946
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi76308628628363(Top 29%)1183(Top 10%)1183(Top 22%)
10K6.21 mi3.10 mi8118-4881038-1761038-1768626(Top 30%)1228(Top 10%)1228(Top 22%)
15K9.32 mi3.11 mi8174-561073-351073-358363(Top 29%)1183(Top 10%)1183(Top 22%)
20K12.43 mi3.11 mi8201-271103-301103-308559(Top 30%)1331(Top 11%)1331(Top 24%)
Half13.11 mi0.68 mi8147+541090+131090+137559(Top 27%)928(Top 8%)928(Top 17%)
25K15.53 mi2.42 mi8050+971069+211069+217786(Top 27%)1132(Top 9%)1132(Top 21%)
30K18.64 mi3.11 mi7833+2171037+321037+327315(Top 26%)1130(Top 9%)1130(Top 21%)
20M20.00 mi1.36 mi7673+1601014+231014+236598(Top 23%)1006(Top 8%)1006(Top 18%)
21M21.00 mi1.00 mi7528+1451006+81006+86803(Top 24%)1218(Top 10%)1218(Top 22%)
35K21.75 mi0.75 mi7446+821002+41002+46190(Top 22%)980(Top 8%)980(Top 18%)
23M23.00 mi1.25 mi7296+150990+12990+125838(Top 21%)952(Top 8%)952(Top 17%)
24M24.00 mi1.00 mi7157+139971+19971+195441(Top 19%)866(Top 7%)866(Top 16%)
40K24.85 mi0.85 mi7046+111963+8963+85411(Top 19%)905(Top 7%)905(Top 17%)
25.2M25.20 mi0.35 mi7006+40959+4959+46125(Top 22%)1283(Top 10%)1283(Top 23%)
Finish26.22 mi1.02 mi6946+60971-12971-126831(Top 24%)1576(Top 13%)1576(Top 29%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21story building
+97ft-345ft

Overall

8363

Females

1183

F18-39

1183

5K→10K

3.1 - 6.2 mi

Top 30%
×5story building
+79ft-138ft

Overall

8626

Females

1228

F18-39

1228

10K→15K

6.2 - 9.3 mi

Top 29%
×3story building
+67ft-78ft

Overall

8363

Females

1183

F18-39

1183

15K→20K

9.3 - 12.4 mi

Top 30%
×5story building
+106ft-86ft

Overall

8559

Females

1331

F18-39

1331

20K→Half

12.4 - 13.1 mi

Top 27%
×2story building
+19ft-37ft

Overall

7559

Females

928

F18-39

928

Half→25K

13.1 - 15.5 mi

Top 27%
×4story building
+66ft-88ft

Overall

7786

Females

1132

F18-39

1132

25K→30K

15.5 - 18.6 mi

Top 26%
×9story building
+181ft-148ft

Overall

7315

Females

1130

F18-39

1130

30K→20M

18.6 - 20.0 mi

Top 23%
×5story building
+64ft-50ft

Overall

6598

Females

1006

F18-39

1006

20M→21M

20.0 - 21.0 mi

Top 24%
×8story building
+106ft-24ft

Overall

6803

Females

1218

F18-39

1218

21M→35K

21.0 - 21.8 mi

Top 22%
×7story building
+17ft-86ft

Overall

6190

Females

980

F18-39

980

35K→23M

21.8 - 23.0 mi

Top 21%
×5story building
+23ft-63ft

Overall

5838

Females

952

F18-39

952

23M→24M

23.0 - 24.0 mi

Top 19%
×6story building
+12ft-82ft

Overall

5441

Females

866

F18-39

866

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5411

Females

905

F18-39

905

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

6125

Females

1283

F18-39

1283

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2story building
+22ft-21ft

Overall

6831

Females

1576

F18-39

1576

Passing Analysis

Category:
Athletes Passed
1889
Passed By
1205
Net Change
+684
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7630
5K → 10K67555-488#7630#8118
10K → 15K121177-56#8118#8174
15K → 20K142169-27#8174#8201
20K → Half595+54#8201#8147
Half → 25K17578+97#8147#8050
25K → 30K29578+217#8050#7833
30K → 20M17717+160#7833#7673
20M → 21M16722+145#7673#7528
21M → 35K9614+82#7528#7446
35K → 23M17121+150#7446#7296
23M → 24M15011+139#7296#7157
24M → 40K12312+111#7157#7046
40K → 25.2M5010+40#7046#7006
25.2M → Finish9636+60#7006#6946
TOTALS18891205+684
📊

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