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BOSTON MARATHON 2025

Crystal Fleck

Bib: 20500•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F40-44)
#0 / 1718
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
9:09/mi
28:25
↑ 97↓ 3451.5%
10K· 6.21 mi
9:14/mi
57:05
↑ 79↓ 1380.4%
15K· 9.32 mi
9:11/mi
1:25:38
↑ 67↓ 78
20K· 12.43 mi
9:04/mi
1:53:48
↑ 106↓ 860.1%
Half· 13.11 mi
9:02/mi
1:59:58
↑ 19↓ 370.5%
25K· 15.53 mi
9:02/mi
2:21:53
↑ 66↓ 880.2%
30K· 18.64 mi
9:13/mi
2:50:31
↑ 181↓ 1480.2%
20M
9:16/mi
3:03:06
↑ 64↓ 500.2%
21M
9:30/mi
3:12:36
↑ 106↓ 241.6%
35K· 21.75 mi
9:13/mi
3:19:30
↑ 17↓ 861.7%
23M
9:11/mi
3:31:00
↑ 23↓ 630.6%
24M
9:12/mi
3:40:12
↓ 821.3%
40K· 24.85 mi
8:59/mi
3:47:53
↓ 200.3%
25.2M
9:37/mi
3:51:12
↑ 13↓ 160.2%
Finish· 26.22 mi
8:28/mi
3:59:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:59:58
Pace9:09 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:59:52
Pace9:09 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:1228:259:0928:25
9:09
-
10K
6.21 mi11:50:5257:059:1128:40
9:14
+0:05
15K
9.32 mi12:19:251:25:389:1128:33
9:11
-0:03
20K
12.43 mi12:47:351:53:489:0928:10
9:04
-0:07
Half
13.11 mi12:53:451:59:589:096:10
9:02
-0:02
25K
15.53 mi13:15:402:21:539:0821:55
9:02
0:00
30K
18.64 mi13:44:182:50:319:0928:38
9:13
+0:11
20M
20.00 mi13:56:533:03:069:0912:35
9:16
+0:03
21M
21.00 mi14:06:233:12:369:109:30
9:30
+0:14
35K
21.75 mi14:13:173:19:309:106:54
9:13
-0:17
23M
23.00 mi14:24:473:31:009:1011:30
9:11
-0:02
24M
24.00 mi14:33:593:40:129:119:12
9:12
+0:01
40K
24.85 mi14:41:403:47:539:107:41
8:59
-0:13
25.2M
25.20 mi14:44:593:51:129:103:19
9:37
+0:38
Finish
26.22 mi14:53:373:59:509:098:38
8:28
-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

8:28 /mi

Average Pace

9:09 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:47:01

95% of race

Time at Steady Pace

12:49

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:09 /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 mi11:22:1228:259:0928:25
9:09
#23030
10K
6.21 mi11:50:5257:059:1128:40
9:14
#23163
15K
9.32 mi12:19:251:25:389:1128:33
9:11
#23040
20K
12.43 mi12:47:351:53:489:0928:10
9:04
#22609
Half
13.11 mi12:53:451:59:589:096:10
9:02
#22580
25K
15.53 mi13:15:402:21:539:0821:55
9:02
#22169
30K
18.64 mi13:44:182:50:319:0928:38
9:13
#21533
20M
20.00 mi13:56:533:03:069:0912:35
9:16
#21266
21M
21.00 mi14:06:233:12:369:109:30
9:30
#20985
35K
21.75 mi14:13:173:19:309:106:54
9:13
#20909
23M
23.00 mi14:24:473:31:009:1011:30
9:11
#20707
24M
24.00 mi14:33:593:40:129:119:12
9:12
#20612
40K
24.85 mi14:41:403:47:539:107:41
8:59
#20486
25.2M
25.20 mi14:44:593:51:129:103:19
9:37
#20438
Finish
26.22 mi14:53:373:59:509:098:38
8:28
#20324
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi230309184918422834(Top 80%)9009(Top 74%)9009(Top 524%)
10K6.21 mi3.10 mi23163-1339232-489232-4823299(Top 82%)9293(Top 76%)9293(Top 541%)
15K9.32 mi3.11 mi23040+1239149+839149+8322834(Top 80%)9009(Top 74%)9009(Top 524%)
20K12.43 mi3.11 mi22609+4318911+2388911+23821306(Top 75%)8202(Top 67%)8202(Top 477%)
Half13.11 mi0.68 mi22580+298899+128899+1221983(Top 77%)8588(Top 70%)8588(Top 500%)
25K15.53 mi2.42 mi22169+4118694+2058694+20520092(Top 71%)7583(Top 62%)7583(Top 441%)
30K18.64 mi3.11 mi21533+6368371+3238371+32318729(Top 66%)6972(Top 57%)6972(Top 406%)
20M20.00 mi1.36 mi21266+2678254+1178254+11718123(Top 64%)6792(Top 56%)6792(Top 395%)
21M21.00 mi1.00 mi20985+2818112+1428112+14216124(Top 57%)5783(Top 47%)5783(Top 337%)
35K21.75 mi0.75 mi20909+768084+288084+2819295(Top 68%)7604(Top 62%)7604(Top 443%)
23M23.00 mi1.25 mi20707+2028004+808004+8017288(Top 61%)6604(Top 54%)6604(Top 384%)
24M24.00 mi1.00 mi20612+957969+357969+3518379(Top 65%)7244(Top 59%)7244(Top 422%)
40K24.85 mi0.85 mi20486+1267912+577912+5716273(Top 57%)6205(Top 51%)6205(Top 361%)
25.2M25.20 mi0.35 mi20438+487893+197893+1915305(Top 54%)5746(Top 47%)5746(Top 334%)
Finish26.22 mi1.02 mi20324+1147853+407853+4016084(Top 57%)6079(Top 50%)6079(Top 354%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

22834

Females

9009

F40-44

9009

5K→10K

3.1 - 6.2 mi

Top 82%
×5story building
+79ft-138ft

Overall

23299

Females

9293

F40-44

9293

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

22834

Females

9009

F40-44

9009

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

21306

Females

8202

F40-44

8202

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

21983

Females

8588

F40-44

8588

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

20092

Females

7583

F40-44

7583

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

18729

Females

6972

F40-44

6972

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

18123

Females

6792

F40-44

6792

20M→21M

20.0 - 21.0 mi

Top 57%
×8story building
+106ft-24ft

Overall

16124

Females

5783

F40-44

5783

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

19295

Females

7604

F40-44

7604

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

17288

Females

6604

F40-44

6604

23M→24M

23.0 - 24.0 mi

Top 65%
×6story building
+12ft-82ft

Overall

18379

Females

7244

F40-44

7244

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

16273

Females

6205

F40-44

6205

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

15305

Females

5746

F40-44

5746

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

16084

Females

6079

F40-44

6079

Passing Analysis

Category:
Athletes Passed
3264
Passed By
558
Net Change
+2706
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23030
5K → 10K171304-133#23030#23163
10K → 15K232109+123#23163#23040
15K → 20K45827+431#23040#22609
20K → Half5021+29#22609#22580
Half → 25K4209+411#22580#22169
25K → 30K6448+636#22169#21533
30K → 20M2714+267#21533#21266
20M → 21M2843+281#21266#20985
21M → 35K9014+76#20985#20909
35K → 23M21311+202#20909#20707
23M → 24M11722+95#20707#20612
24M → 40K1348+126#20612#20486
40K → 25.2M557+48#20486#20438
25.2M → Finish12511+114#20438#20324
TOTALS3264558+2706
📊

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